Looks like most of you adopted the EVO from other than an iPhone. I enthusiastically went from an iPhone 3gs to the EVO and then regretfully back to the iPhone.
I returned my EVO a couple days ago and am keeping the iPhone 3gs for another 6 months or so. I really wanted to love the EVO - and did love a lot about it. It's just not yet there compared to the iPhone. I believe EVO and like android products win in the long run (just as Windows did), but they are a revisions or two away.
Loved:
* The physical device - nice, big screen; great feel in the hand; quality build; just a good design.
* The way the OS and HTCSense work. Improved design and flexibility vs the iPhone. But clearly not as polished and much more work for the to user figure out.
* camera - very good. Don't know how it compares to the iPhone 4, but blows away photos and video on the 3gs.
* voice commands: especially Vlingo and it's integration with navigation and other applications.
Hated:
* battery life - yes, you can improve it by working hard and turning off all the stuff that makes the Evo special; but the operating system should take care of that.
* applications - a number of applications that I use a lot are simply not there - like netflix, skype, WSJ... , and others like Facebook are just not as good an implementation (yet).
* synchronization calendar and contacts (with Outlook) - too gmail dependent (with some functions not supported, like reminders which I use a lot). Did not try the HTC Sync. However, just converted to gmail and this could become a benefit over time.
Indifferent:
* 4G - Live in Austin, so we have 4G most places (except where I live in the hill country, but that was no big deal with wi-fi). It is as fast as advertised, but I found it did not make much of a difference on a small-screen device. However, did not use for video conferring since nobody else uses the only application that works on the Evo.
* Sprint - actually this is a compliment because I had low expectations (based on 10-yr-old experience).
Conclusion: I expect to convert to whatever replaces the Evo in six months or so. Android 3+, HTCSense.com, native video conferring, upgraded nav system, more 4g coverage, fixing the annoyances & polish of Android, choice of Spring/Verizon/Other (need a carrier that has both a great Android and iPhone - my kids will switch from the iPhone, but my wife will never - she is the character in the cartoon "... it prints money ... I don't care, I want an iPhone 4"... I really liked the EVO, but not enough to keep it yet.