If you have a lot of free time to spend hacking the phone to get your picture messaging working, go with the e816. Otherwise, go with the e815, which the hacks only take about 10 min. The three phones are essentially the same, just as you step up, so does the camera quality, as well as the ease of use. The v710 has a crappy camera, the e815 has a better camera, but both require a hack to transfer files... The e816 comes with a memory card free, does NOT require any software whatsoever to transfer pix/music, and does not require a hack unless you want to use software to transfer pix/music. The 816 also has "airplane mode", which turns the phone into an airplane?