@ADB - You will find unlimited exposure in current ptool 3.62 in - Patches for end users - Movie related restrictions - 30min limit removal. Just check it:-)
FWIW, my hacked GH2 (now with English menus) still produces a Japanese language screen on my Viera TV when connected via HDMI. The language applies to the control-buttons on the TV remote. Not a big problem, just a mystery.
Upcoming PTool also will have some things for low GOP lovers (as it'll properly internally and transparently calculate changes to internal GOP related parameters for your new GOP length)
That's what it sounds like but I'm wondering if it will be upscaled or closer to native. Sounds interesting to say the least. Probably will be more useful for anamorphic stuff.