I bought myself a MacBookPro8,2 (MacBook Pro 15" Late 2011).
It runs Lion fine.
I tested my kernel on it and it works (so it's not the patches that are wrong).
Apparently there is something missing for getting it to run on AMD (something they changed).
Today I'm also going to buy myself an iPhone 4S (always wanted one of those).
As for AMD, I'm going to continuing trying to fix it (not sure if I'll succeed though).