I bought this one from dell.com. The touch screen is not that responsive. The programs are freezing very often. No sensible apps at all.
Hold buying this device. Its UI design is wierd. No search function for your apps downloaded/installed.
Surprized to see so hyped reviews about this device and regret buying it after reading those reviews…
Top 10 N900 apps:
http://www.electricpig.co.uk/2010/03/26/nokia-n900-apps-top-10/
10th: Pixelpipe Media Gateway for Nokia Share