Looking for eiem small cell phone in your pocket, I'm stuck at the SE Txt.Pro. Super light, super small, super keyboard - exactly what I was looking for. jetz comes the but - by the sliding mechanism the lock will be released and happens all the time in your pocket. the speaker sound is to be regretted, long calls are a pain and the worst: I have never had a cell phone, the software will lock up at least once a day, so that the battery needs to get out, and then the settings must be made again. All my previous Nokia and SE phones did not know the problem. Never!. Even the operating system Androit 4.0 I've never had the problem that the software hangs. An update on the support does not work! The software problem seemingly well to be an isolated case, so stay away from this model.