Quote from the review at I4U.com:
“On the other hand, the SX1 is not perfect. But before I go yakking about its imperfections, a full and fair disclosure first. It is not designed, configured or calibrated for the Philippine market. Having said that, let us now proceed with the business in hand. First, its keypad might be efficient (hey, it was designed by German engineers, what do you expect?), but it comes with an extremely high learning curve. Second, there is a noticeable delay in software reaction to keypad moves. I counted a five-second delay when opening SMS messages, for example. Its power management needs some improvement, too. After charging the unit for some two to three hours, I only got some 48-plus hours of standby power. Worse, it hanged at least four times. “