My beloved Sony UX490N seemed a little bit to large and doesn't have built in GPS - so I got a new toy today...

http://www.pocketables.net/2009/04/review-viliv-s5-premium.html

I'm sure the Atom processor will not be nearly as fast as the chip in my 490N - but hey this thing gets 6hrs of battery life, 200hrs of standby time - aaand this one actually fits in my pocket cause its much thinner. Now I need to find a tiny webcam for it...ha