I've had a Tytn II (WM6) the last 18 months and wamted something a little more funky, but not with the iPhone politics. Did loads of research last week and picked up a HTC Hero on Yodafone on Saturday – 18 months, free phone, £35m 600 mins, ul texts, passport and ul data.
Have spent hours just setting it up and "playing" with it, because it's just so damn cool. Integrates Exchange, Googlemail (inc Reader, Docs, etc), Facebook, Flickr and Twitter plus loads more, so you get a one-stop shop for managing all your contacts, calendaring and updates.
Sweet iPhone-type UI (plus scenes for Work, Social, etc), loads of Android apps (inc Cardio Trainer which worked perfectly on a 3hr ride yesterday (with GPS, etc)), and more.
Ok, I've only had it a couple of days but I'm well impressed – it's what I'd call a 'lifestyle phone.' And the gf liked it so much she upgraded at the same time!
Highly recommended.
SM