Just like a human being, it's a good idea for a handheld device to get a fitness check-up once in a while. Of course, a Pocket PC can't go to a doctor, so it's up to you to give it the once over yourself.
Tester mobile makes this job very easy, analysing your device, checking for operating system errors and supplying you with lots of information about your handheld.
Tester mobile runs very quickly and is great for picking up general problems with your operating system. However, technology freaks might feel that the tests aren't rigourous enough.