We bought one for work (we have an android app), and I got to play with it for a few minutes. It really is pretty awesome. It is a great unit (HTC is a great manufacturer) and my brief experience rivaled the iPhone. I can't speak to what it would be like to live off the phone, but what little I saw I loved.
better than the iphone for one reason...... no itunes!!
my neighbor got one. bought an 8gig SD card. he came over, and copied my entire music folder with a simple drag and drop.
i love my iphone, as it has been the most useful tech tool that i have probably ever had other than the PC. however, their marriage to itunes will be the reason i switch.... when i switch.