From the little testing I've had the chance to do today, everything appears to be working pretty smooth. I'm using the #3 ROM with the new #7 Kernel. Both Netflix and YouTube HD play without a problem, along with a couple of games I tried (Sims Free Play and Puzzle Quest 2). Wifi connected without an issue and has a different MAC address than it was showing with #6. I can also stop/start WiFi without any problems. I'll check out battery life later after I actually get it fully charged. Great work.
It's funny, but I've had fewer issues running your "test" ROM than I have with other ICS ROMs (Netflix always worked once you got HWA working, I never really saw the status bar bug, etc).
Obviously not a priority, but I'd love to see a build.prop (is that the correct term?) that would let me install some of the Kindle Edition games I've purchased. But, like I said, definitely not a priority.