What are you talking about? I have no idea what the heck that thing is...
Benchmarks are for people like my brother who sit in their rooms trying to "massage" .0001 Ghz out of their "rigs" instead of enjoying life. As I said there is more going on here than just the processor. You get no added speed in real world applications by using the 255 over the 250.
As I said, if you can't life with that, move on and find a new Pocket PC other than Dell...