[cortez]

my 2 cents.... to answer the OP original question: is WP7 worth dropping WinMo 6.5 or android (or other OS)? i would answer no if you like to customize your device, your WP7 phone is your only phone and a simple interface doesn't cut it for you. if you want more on my experience please read below.

from my post at xda developers

used the Surround as a daily driver for 7 days and here are my personal, unscientific observations:

the good....
- responsive
- simple, straight-forward OS
- nice, clear, easy to read screen
- outlook integration; simple email setup with Outlook 03 or 07
- good calendar app for my needs
- good call quality and volume
- loud ringtones
- great keyboard!
- 16 GB of onboard space

the not-so-good or, things i've gotten accustomed to with other phones that i'd miss with WP7
- no conversation view in email, no integrated inbox
- no contact lookup via phone dialpad
- limited customization (e.g., cannot use your own ringtones)
- no text reflow; zoom in/out increases the font size but you have to move the screen to read text in web pages and email (a biggie for me)
- small fonts in txt msg app
- no shuffle for play lists; it's only available when playing "all music/songs"
- surround is heavy relative to my HTC Desire
- 5 minutes max on screen timeout and screen lock
- no tethering app
- external speaker is wasted space; give me a keyboard or reduce the size of device
- no copy & paste
- *sigh* battery life; for me it was not good. i had 3.25 hours in calls one day 2 and it simply killed my battery.

i've been majorly spoiled by my HTC Desire, Nexus One, Android and the wealth of options that are available with that platform. so, in summary, kudos to MS for delivering a good foundation OS. at this point, i'm not ready for WP7

[end of xda post]

despite all the not-so-good stuff, and my initial belief that i'm not ready for WP7, i've changed my mind and i'm jumping back onto the WP7 band wagon with the Telstra HTC Mozart (has the 850 3G at&t band). my decision was made easy due to an extremely generous return on a weekend sports investment (Cowboys vs. Giants and Iowa vs. Northwestern). don't know where this journey will take me, but if i find that WP7 isn't for me, i'll sell it on ebay.