Share 'Mobile 2.0'

Is anyone experimenting Moblogging or any other kind of Mobile 2.0 strategies. I am becoming quite interested in it and will consider an iphone in the next weeks (still need to check my budget!!! :-( )...but would like to have some mobile 2.0 buddies to guide me the way and to go on a joint mobile exploration. It surely would be more fun to learn about it in good company. Please let me know wh...