Jason Langridge points out a free little app for Windows Mobile that allows you to use your smartphone as a remote control for certain software on your desktop (like, WinAmp or Powerpoint). Looks like a neat (and free) alternative to the already popular Salling Clicker

This is home page of Bluetooth Remote Control for Windows Mobile, a Remote Control software using Native Bluetooth Transport without ActiveSync.

Read: Bluetooth Remote Control for Windows Mobile