I know that through 1.8.9 I was getting a runaway process again (android.idq according to OSMonitor). Just updated to 1.8.10 this morning. Had one reboot right off, but nothing in the 3 or so hours since. We'll see if the process starts up again. I honestly don't know if it's the ROM or the kernel. If I get it again, I'll try a different kernel.
On the plus side, the battery was lasting about 2 hours longer with the runaway process than it did when I had it with the beta 2.1 roms (6 hrs vs 4 hrs).