The mobile phone I'm actually using. It is fully compatible with iSync (you can synchronize contacts, calendars in just one click).
It also has an iTunes feature which enables you to upload music to your phone just like an iPod. You just have to connect the phone to your Mac with the given USB cable, it opens iTunes and that's it ;)
The only bad point to this phone is a 50 songs limitation...
NB: there is also a superb gold V3i, Dolce Gabanna Limited Edition which really looks great!