That's your answer.
If you connected to WLAN/Bluetooth all the time,your battery will run out fast.This happens to all smartphones.Though not as fast as you mentioned.
Try full recharge & disconnect from WLAN/Bluetooth.

Conky is an application like Windows Task Manager for Linux.
You can download it free from App Manager.

Yup.You can recharge whenever you want.
But personally I prefer to recharge if the battery level is below 50%.

Just let it charge till the LED indicator turns green.

You need to enable Repositories Extras 1st.

http://my-maemo.com/download/repos/extras.install

Install this file in your phone.This will enable extra repositories

I charge my phone once per day.

Here's some of modification that I remember.Credit to meLi,D4klar(maemo talk) & few others that I don't remember.
All the instructions are in zip files.

I'll start with the easiest way to mod which is with OpenSSH/WinSCP.

1)Install OpenSSH from app manager
2)Remember to set password for root when asked.If you forgot follow these step.
i)Open X-Terminal
ii)Press "sudo gainroot"
iii)Press "passwd"
iv)Set your password & exit
3)Download WinSCP from http://winscp.net/eng/download.php#googtrans/it/es
4)In order to connect N900 & PC/Laptop you should know your phone IP address.It can be done with X-Terminal.
i)Open X-Terminal
ii)Press "sudo gainroot"
iii)Press "ifconfig"


IP address is the 1 highlighted.
5)Run WinSCP
6)Your hostname is your IP address,username is root & password is the 1 you just set.
7)When you press connect WinSCP should show 2 window now.

Mods

 850MHz_OC.zip ( 28.54k ) Number of downloads: 10

850MHz OC from status bar.You can modify it according to speed you want or just copy paste if want to use 500-850MHz setting.

Battery Icon Mod
 Battery_Mod.zip ( 190.27k ) Number of downloads: 11


Cell Icon Mod
 Cell_Level_Mod.zip ( 56.11k ) Number of downloads: 11


Change Media Player Background
 Change_Media_Player_Background.txt ( 130bytes ) Number of downloads: 16


Clock Mod
 Clock_Mod.zip ( 946.09k ) Number of downloads: 12


Conversation Mod
 Conversation_Mod.zip ( 10.14k ) Number of downloads: 15


The all famous pacman lockslider.You can make your own with the instructions inside too.
 Lockslider_Mod.zip ( 138.57k ) Number of downloads: 15


This shortcut is very helpfull to create phone shortcut in all 4 homescreen.
 Multiple_Phone_Shortcuts.zip ( 7.92k ) Number of downloads: 9


Add the very useful reboot button & fancy icons.
 Powerkey_Mod.zip ( 22.47k ) Number of downloads: 20


Welcome video mod.
Frankly speaking I feel that Nokia only deserve 1/2 the credit for making this phone.I prefer maemo welcome video over default video.There are 2 welcome video inside.You can choose either 1.I'll update later if managed to find the maemo video.
http://www.mediafire.com/?w33jjmgczkd

This post has been edited by super_evil_alien: Jun 18 2010, 11:35 PM

http://www.mediafire.com/?tmmydkh4nyq

Another person who appreciate resistive touchscreen
http://noknok.tv/2010/06/18/n900-mypaint-meego-potential/

This post has been edited by super_evil_alien: Jun 18 2010, 11:31 PM

Surprisingly Milestone have just around the same number of users as N900 in LYN.

Somehow I knew I typed the filename wrong.
All link fixed now.

After installing the WinSCP & OpenSSH you should have 2 window when you run WinSCP.
From there you just have to copy & paste to the specified link.

I gave all the target folder(the folder you should copy/paste) in the "Instruction" files inside the zip file.

---

Added on June 18, 2010, 11:55 pmThere are some more sms/im layout.
I'll post somemore when I'm free.

Rename,copy & paste.
How hard can it be?

This post has been edited by super_evil_alien: Jun 18 2010, 11:58 PM

You can do the mods I posted & still use the Beecon at same time.Nothing will be affected.

I only use Beecon widget to show my CPU temp.

I lost most of my scrips when I reflash my phone.
Because before this I mod whenever I feel like it without properly backup the scripts/images/icons
This time I'll try to save all my mods.

Reverse engineer maemo talk guys discoveries
Whenever they learn something others always try to improvise it to suit them.

@aspire
Are you subscribing to OVI beta apps?
Is there any new OVI Maps beta coming out?

No point downloading this.
This just rotates the screen but don't rearrange the screen.You can get better result with CTRL+SHIFT+R

@Eiraku
I pm-ed the seller yesterday.He was wondering how much case he should order now.Most probably he'll get the case by next week.

N900 have integrated IM.Like me I'm uisng YM so I just install pidgin protocol things & just add my IM.From what I can see with my phone you can add your msn the same way.

Alternatively you can install Pidgin Instant Messenger from app manager.

Always had this problem or what?
My YM is working like charm.

This post has been edited by super_evil_alien: Jun 19 2010, 11:40 AM

Download Pidgin protocols plugin for conversation & contacts from apps manager
Go to status bar->Availability
Go to Account at bottom of screen
You can start creating new YM account now.

So far I never seen any other N900 in my U.
It's godd thing that more & more people using this phone.

username should be something like super_evil_alien only.Not super_evil_alien@yahoo.com

Most probably it's the router problem.

There's another way of connecting.But this will require you to have laptop/desktop with WiFi capability.

1)Make sure your laptop/desktop connected to internet.
2)Go to Network & Sharing
3)At left side you'll see "Manage Wireless Network"
4)Click "Add"
5)Click "Create ad-hoc network"
6)Choose a adhoc name & password.
7)Your ad-hoc should be available now when you search for WiFi network in your phone.
8)After connecting to the ad-hoc start from the step 1 of my previous tutorial.

This post has been edited by super_evil_alien: Jun 19 2010, 01:33 PM

You need to download Pidgin protocols plugin for conversation & contacts from apps manager 1st
Go to "App Manager" & download from there.Make sure you already add extra repo before that.

Is it really that hard setting up IM with this phone?
I found it very easy.

---

Added on June 19, 2010, 2:14 pmAre you using Windows XP?

My instruction is for Windowx Vista/7
Network & Sharing is under Control Panel.
I don't have any computer using windows xp near me.

This post has been edited by super_evil_alien: Jun 19 2010, 02:15 PM

Any videos uploaded to youtube will have quality degrade.
Google need to re-encode the files to keep the video size down.

Nope.
This phone supports 32GB internal memory + 32GB external memory.
I know few guys who are using 32GB + 32GB memory.Most of the extra 32GB memory users using it to install NITDroid(Android for Maemo)

I doubt any normal user can fill the internal 27GB GB memory.

Ideal kernel use lower voltage.
Main reason why I prefer it.

Mine broken after 2 days.

lhongwuh will be bringing proper rubber case.I think his case should be better.

Otterbox is too expensive & need to order from oversea.I'm lazy to do that.

You mean you want to password protect folder like root folder?
I don't know whether the is app like that available for maemo.Because from what I read this function fell into maemo's closed source category.Only Nokia can write app like this.

This taken from another thread.
What a lot of crap.

This post has been edited by super_evil_alien: Jun 20 2010, 01:20 AM