I am a long time trackball user, and I need to get a blutooth pointing device for my PB. I can't go USB wireless, because one of the programs I have to use has a USB Dongle which uses one of my two ports, and the other will be used for USB Keys, printers, etc. Apparently, the only bluetooth Trackball out there is The Ball. Has anyone used it? anyone have any experiances with it? I use a Logitech trackball with a thumb ball now, would this one be a lot different to use? If it sucks, does anyone have any suggestions of a good bluetooth mouse? Thanks!