My CF Mod works perfectly...except for the fact that after I transfer files to my computer via USB and disconnect the drive it says "no partition found". I am not able to tun off the unit via the off button. At that point I just hit the reset button on the bottom of the unit and everything is fine, boots normally, etc.
Kinda frustrated me at first but I've gotten used to it. Love the CF Mod, great battery life and really no potential to lose the data from a HD failure.