I'm needing to get a new phone. My last two were Sony and I've loved them. I want a flip phone, touchscreen and sliders are too fragile for my life-style. I really like the Equinox (aka: tm717 or t707). Does anyone have one of these phones unlocked and running on AT&T service? Does it seem to work well, all functions of the phone. Also, would your recommend the tm717 (built for t-mobile and cheaper) or the t707 (generally sold abroad, not designed for any specific company, but costs a good $80 more)? I've read one review that said she preferred the t707, but didn't say the differences.