From the Developer
Simple app for checking the status of your Raspberry Pi.
RasPi Check shows you overclocking information (frequency, temperature, volts) and more system information (free memory, runtime, disk status). You can also restart your raspberry pi (sudo password needed)!
Tested with a Raspberry Pi Model B and Raspbian, OpenELEC, XBian and Raspbmc.
If you find bugs or have problems with this app: https://github.com/eidottermihi/rpicheck/issues