overall w580 design better and cheaper lo...but keypad crack like hell..., P9 Q0 b. h0 S0 z; t$ N/ U
w910 more expensive...but the price will drop soon...
They both shit4 i7 o- @" [, Q3 W9 Q T
i have the W910i, its system is too slow respond...5.39.217.77, p4 `( z H; }2 }
also the battery can not be used long... 0 k* O6 E- p* g2 F' X/ z! m9 l, p+ K/ E4 c: F
dont waste money buy others...