Would be great if battery lasted, but backlight stays on, so it doesn't.
Conclusions: Would be good, but the backlight never switches off, even when it sleeps and the display is blank. So the battery dies within a few hours, not enough for a day out, even if bluetooth gsm etc, all disabled. This is presumably a manufacturing fault, not intrinsic to the design.
Everything else works as expected - many useful features - including can make a phone call independently of another phone.
Another detail: parts of interface (text entry) designed for rectangular display (keys in corners