There are now in total 21 tips, tricks & code samples published on Sony Ericsson Developer World. Here are the latest three released in June for the UIQ 3-based Sony Ericsson M600, P990 and W950 phones:

Getting the IMEI number: a UIQ 3 code example

The IMEI number is used in many mobile applications since the unique number makes it possible to lock software to a particular phone. This effectively prevents unauthorized copying of an application. The application sis file can be copied, but the application can not be used on phones for which there dose not exist a valid licence, which must be bought from the application manufacturer.

This UIQ 3 example application shows how to obtain the IMEI number in a Symbian OS application

UIQ 3 screen capture utility: a useful tool for developers

The following code example implements a tool for taking screenshots of running applications on Sony Ericsson's UIQ 3 phones.

Splitting long running UIQ 3 tasks to keep UI apps responsive

By assigning a very low priority to an active object it is possible to make an active object run only when nothing of higher priority needs to run. This example application searches for prime numbers and can also simulate a more important task and stop he prime finder active object when RunL completes due to the lower priority.

All these tricks and a lot more on Sony Ericsson Developer web site.