After upgrading to this firmware, it seems that many more USB adapters are working and it's approved for user upgrade with a simple aplication (found my link on hoodman's website on their SxSxSD adapter). Class 6 SDHC 4GB card I just tested let me run 3 minutes of 60p recording w/o any problems, and others are reporting better 60p recording as well.

Just an FYI, Class 10 may not be necessary, but hoodman guys told me that 60p on class 10 goes all day with the new firmware.

Dave