Okay so here's the latest in version hf8:

1. Fixed bug that was causing a reboot every hour.
2. Created new update mechanism that doesn't need to reboot RPI.
3. Restored cgminer 3.9.0h2 - This puts the hashrate calcs back and seems to be more reliable.
4. Added "Check Now" button to the update section on the settings page.  (This causes an immediate upgrade if one is available)
5. Added "boot_delay=1" to try to help some RPI's hanging at the "rainbow" when rebooting.  (Thanks rMuD!)

Everyone running the HashFast image will get this within the next hour provided your RPI's are online and Automatic Updates are enabled.  You'll be able to tell from the status page.  (Look for "0.2.4.3hf8" for MinePeon version)

Let me know if you have any problems or suggestions.

-Phil