Samsung SCH-i730
Pdaphonehome.com the answers to pretty much all your questions
http://pdaphonehome.com/forums/samsung-i730-i830-i830w/ »
also there are all the hacks out there and quite a few useful programs and such. all they ask is that you use the forum search function before you post, since the phone has been out for over two years and most questions have already been answered. seriously, it helped me a lot as a new owner, so I thought I would share the wealth