Yeah, don't worry about the exterior!

As long as the interior is fine, eg your iPAQ is working properly, it should be alright. It is something you can buy with money so don't worry too much. It's like a car, my 9 months old M3 is full of scratches, stone chips (due to the high speed travelling) and even 2-3 knocks on the front bumper. It doesn't bother me as long as the engine is in good condition and the interior is clean and comfortable. My point is as long as your iPAQ is working properly, there's nothing to worry about! cheers!