I'd be interested to know how to use xterm to get info about power usage too!

Some easy commands to get basic info about the state of the device:

uptime

- tells how long the device is booted for, and how busy it is

free

- show memory use (RAM and swap)

df

- show how full the storage is

top

- updated display of running processes statistics. By default it shows processes using most CPU at the top. Press m to sort by memory use. Use ctrl-c when you've had enough.

You might need to do some extra reading to interpret the output of these commands.. there is plenty information on the web, e.g: http://salomie.ro/wiki/index.php/Linux_Free_Command (or just google: linux free command, etc.)

Edit: Oh, see also: http://talk.maemo.org/showthread.php...ight=xterminal