I had a Samsung SGH-720 or some such. It’s been nothing but a pain in the butt… very buggy, especially the bluetooth, which required a power cycle to work correctly 75% of the time.
So I got a Sony Ericsson K800i. It seems to be a lovely phone, lovely crisp graphics, good menus and user interface generally. It also has an excellent built-in camera, a 3.2 mega pixel affair. It has bluetooth that … shock horror, actually works.
I was particularly pleased to discover a feature for over-the-wire software upgrades – though none is currently available at present.
However, I’ve had a few problems, which is the really the reason for this comment:
1) very minor, the key tone simply doesn’t work all the time. No real problem…
2) much more seriously, the phone fails to tracks calls some times – i.e. it doesn’t track made calls, and when someone phones you, it tells you there are 0 missed calls – very irritating. I’ve read a few others with the same problem… for me it worked to delete the whole call history and power cycle the phone… so far… it’ll be interesting to see if the problem re-emerges.