Too many of N900 build in applications are proved to be currently slow and buggy, there is also no battery power for practical work and N900 jams a lot taking also a lot of reboots (they are automated!!). Also, the multi-operation system means that n900 is running simultaneusly apps that take capacity even without you know they are running. (Please tell me how to check how many apps there are running at the same time and how to kill the unwanted one!) A power saving hint: Please turn of scrolling of anything in display to start with, scrolling screen updates take all power from the device! Happy enough, there is no manual to say how to optimize any features of N900 for a regular user Enjoy N900 - the Linux developers' heaven!