yes, wee need to jailbreak it if you want to put cydia/icy/ultrasn0w in your phone. if not you also can use it normally without any problem..

Don't worry guys, the unlocking software patch is already in the works and should be here by Friday (US Time).

SOURCE

It's seems that now the time in US is already 2AM Wed
cant wait to update the 3.0 software ..

I have been clicking the "Check For Update" botton every 5 mins to see if any miracle happen!~

crap.. they really didnt give us 3G owners the voice control functionality.. !!!!

but it does comes with the earphone with volume control.. i wonder after the 3.0 updates, can we just use that new pair of earphones which has volume controls to adjust the volume ... hmmmm

US Time has pass 12am 17/6.. still no sign of OS3....

If you have that accessory, it should work. The update is universal and with features intact provided you have the right hardware. For example, the iPhone 3G lack certain hardware from 3G[S] so the latter's feature will not show.

Anyway I thought this 3.0 release is automated. I would expect they release the gates after 12 midnight. What is taking them so long?

This post has been edited by davidmak: Jun 17 2009, 03:38 PM

but before we jailbreak, we need to restore the firmware to OS 3.0 first right? then how do we backup the cydia application before we restore it?

I think you guys better look at this and not presume what works and not.

http://www.apple.com/iphone/how-to/#basics.stereo-headset

and please read the rest http://www.apple.com/iphone/how-to/#basics.introduction

All apps from Cydia has to be compatible with 3.0 before you can install. Doing a backup would be useless as all apps are only for 2.2.1.

This post has been edited by davidgary73: Jun 17 2009, 03:50 PM

Hmm... meaning to say, the stereo plug 'pin-outs' have been changed again.

if i not forgotten on my last JB to 2.2.1..Put your device in DFU mode.. Then run Dev tools to JB, select the downloaded ipw 3.0 firmware.. U are done !! No way to backup Cydia app..U need to re-install all Cydia apps

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Added on June 17, 2009, 3:56 pmNo..no..no.. I was wrong !! I recall d.. In order for a smooth JB.. Restore your phone to OS 3.0 first.. Then, only JB..

This post has been edited by sugen: Jun 17 2009, 03:56 PM

how about i wait for the cydia application like irealsms to have a latest version which is compatible on OS 3.0? then i backup it first and restore it after jailbreak for OS 3.0?

Itunes only backup & restore app store app & your iphone DATA.. Itune know nothing about your Cydia app

I reackon so mate. I would sure love to use the volume function as many of us do. Well, the only way to try is to have iPhone 3GS users to try it out on a 2G/3G iPhone and feedback to us if the volume function is functional.

ofcourse not to use itune to backup the cydia app lah...

3.0 available now http://gizmodo.com/5293557/iphone-os-30-available-right-now

that is no way to backup Cydia app..have to re-install all..

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Added on June 17, 2009, 4:06 pmhmn.. is the source reliable? Official release o not...

This post has been edited by sugen: Jun 17 2009, 04:06 PM

roger that!

hmm iPhone2,1 seems like iPhone 3Gs firmware to me...

there are a lot of ways to backup the cydia application, you can use "CYDER" to backup your cydia application.