Wirelessly posted (8700g: BlackBerry8800/4.2.1 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/102)
No, none of that will happen. You won't get the web browser or email or data without purchasing a BlackBerry Data Plan.
Those cingular settings will not work on the TMo network. Change the APN to www.voicestream.com and you might be able to get Opera Mini browser to work, maybe.