The Nokia N900 functions as a mobile computer and therefore there are endless possibilities as to what the Nokia N900 is capable of doing and not everything can be listed here. There are two things that are very important when experimenting with Nokia N900 tips and tricks. Battery life should be kept going as long as possible. You can do this by keeping your Wi-Fi switched off whenever possible as it is known to drain battery quite quickly when idle. Also completely shut down any programs you are not running as they consume battery power too.
The other issue that is known with the Nokia N900 is its habit of slowing down after a while which forces you to reboot after about a handful of days. For those who are a little bit 'Tech Savvy', I would recommend getting the optimize N900 script and installing it as instructed at this location. If you are not a 'Tech savvy' person you may have to be content with rebooting your Nokia N900 every few days to keep it running optimally.