So i know that the "official" word from apple is that this isnt possible because it needs hardware, but just incase you all have figured something out. Would it be possible for me to enable three or four finger gestures on my black macbook, it was made in early 2008. the reason i'm wondering is that i found the .kext multitouch from one of the alu macbooks on the interenet and was wondering what the consequences would be if i replaced the one on my computer? the site i found it for was giving instructions for enabling four fingers on one of the already multi-touch macbook pros. they said to replace it and repair permissions and then reboot, what could happen if i did this to my macbook? I know that the trackpad can recognize at least three because it is posible under linux with the correct drivers, so can it work?