Good, small, cheap: pick three!
It is small, it is light, got a classy the battery last for days, software is ergonomic. It takes microSD card so you have an MP3 player. It got bluetooth, great predictive text entry. Earphone jack is a regular 1/8".
The calendar and todo list are usable.
Tt's the cheaper phone I can get! 50$!
Cons: No EDGE or 3G. Mostly useless USB connector (you can't charge your phone through USB, only transfer files and exchange data with Ovi suite, which you can do with bluethooth anyway.