I have CM7 Alpha 3.5 on my Touchpad right now I don't care too much for it. It is very nice to have though because I now have apps and GTA3. That is about it. I still much rather have and still use WebOS quiet a lot. Just sucks that the app store is weak, and even QuickInstall is pretty limited/weak.
I hope that CM9 first release is a very strong release. It looks like it, especially if he releases it and everything is at least functional. If not, I will wait for a few builds of it before I through it on there.
The #1 thing that I like about this, and the consideration of this guy is that he knows how awesome WebOS is, and built CM7 and still CM9 with dual boot option! I may end up donating a nice chunk of change to this guy for making my Tablet even more awesome beyond the $100 price tag.