Do play around with the unit before you buy. i saw many bought it because of the price not because the phone suite them and at the end they hate it.

Do take note that new firmware code name "Mango" is not officially released yet for all HTC phone in the market now. those forumer who claims that they are having "Mango" most likely are some unofficial leak from certain web site and they risked their chance to flash "Mango" in their device.

Do take note also flashing to unofficial ROM might leak to "bricking" ya device and those are not cover under official warranty. Do understand what you might come to before you flash. Do full understand the whole process before you carry on with unofficial ROM flashing.

External cause like internet connection and any unexpected hardware or electricity failure will brick the device as well.

Currently there is no Mozart in the market reported come with "Mango".

i hereby do advise those who are having "Mango" on their device. Do not lurke newbie on Mango ROM. As you are clear there are casses some newbie bricked their device because not proper guide are given to them.

If newbie would like you help on "Mango". kindly PM them. but again its up to them have spare time to help you or not.

and lastly... whatsapp is not official yet. :-p

HTC dev is easier to unlock ...
the best tutorial is i think this one .... update ur current 7002 to Mango

http://forum.xda-developers.com/showthread.php?t=1215501

I used the tutorial to update my Samsung Focus to Mango ... unlock another story ...

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Added on September 20, 2011, 9:52 pm

nicely said 
if u r a newbie do take the above warning / advise in consideration ....

How much did you get your?

great to hear that Mango is coming soon after such a long wait. its like becoming a father (bought my phone in Dec2010). LOL

looking forward to Custom Ringtones which is important to me and also WhatsApp. being teased for not having it by my friends. sigh...im the only WP7 user among the gang.

MSN/FB Chat is a great feature. really looking forward to it. as for Fast-App Switching, its not that important to me but great to have it.