I just visited a friend of mine, and she acquired a H-U-G-E collection of GeoSafari cards w/ 2 computers for Christmas. Her other friend used them to homeschool her own 3 children, one of them autistic. :)
I'm telling you, what LITTLE I saw of the system, it's A-W-E-S-O-M-E!!! This friend of mine has 9 children and has cards appropriate for 8 of them (her youngest just turned 1 yesterday). My Little Man jumped right in and started playing with them. He had THE best time!
SO...guess I'm on the hunt for GeoSafari system. ;) My Little Man is extremely difficult to get playing by himself, and he played on that thing for almost an hour before we had to leave. : D My friend said that in a couple of weeks, she'll take him one day a week and let him learn in a "school" setting. I think he's going to love it! I'm excited, anyway. :)