Trackball GENIUS Traveler350 sil/schw 5 Tasten

I brought this mini trackball to accompany my new netbook computer when I'm travelling. Most of the time i use a Logitec trackball for home use. However, I thought something a little bit more portable would be more appropriate. My initial thoughts...

I found the touch pad on my laptop fiddly and the buttons a bit hit and miss to operate. Also I have arthritis and thought a trackball might be more comfortable. This little gadget does the job excellently, so it is a pity it seems to have gone...