after a weekend of playing with it, this is not quite ready for stable release. this biggest issues i saw were:
wifi occasionally turns itself off after screen-off (despite me leaving it on all the time), and when the screen comes on the tablet is unresponsive until the wifi reconnects again. no touches are registered, just the orientation changes when i rotate the tablet, and
the occasional reboot. sometimes when the screen is on and i'm playing with it, other times when it's idle. the results is a bootloop that isn't really a bootloop; the CM9 splash-screen comes up and plays, but it doesn't restart, just keeps displaying the end-part of the animation, and will do this for hours. i have to hard-reset it and only when the tablet boots from the Samsung boot screen does it come back to life.
not huge issues, but unstable enough to make me wonder about the AOKP ROM. sucks because i'm using CM9 on my SGN too, and would like to keep both the same. BTW, not doing anything fancy w/ the tablet, stock settings all around (216-1000, interactive governor, no set at boot, no OC).