The only problem that I have had so far with 0.2 is pocket rebooting. I was somehow hitting the power button and another side button. So I disable the "Hidden Shutdown Options" script and been working much better.
I think I figured it out! I too was having the same problem with reboot issue. So what I did was went back to my original stock froyo before I did any of the custom roms. Once I flashed my backup, I then re-downloaded Jrummys Kangerade but i didn't pick out a KERNEL(No, Thank YOU-on the selection) so now I'm using the stock kernel and the reboot issue is gone. Oh I also uninstalled the setcpu, I read in a few places that the setcpu has been giving problems on froyo too. But I think the Kernels listed on some of the roms are the problem-because I went thru all the kernels on Jrummys and still had the problems...No disrespect Jrummy I love your stuff! Hope this helps...if it does email me.... email@example.com