If you ever have to do presentation at the office etc. or for client?
SUPER-HANDY! And, 'techie' looking... how I learned about them in fact.
* I use mine to lay on couch & play Quake III Arena "remotely"... it's a BIT 'inaccurate' in gaming (less sharp/crisp) than TRUE mouse on the RF one, but works!
I also utilize it as a Remote Control for watching WinTV32 in bed as well or DVD too.
They can be handy!

APK