I had really weird results after I upgraded. I couldn't find the backup I had made TWICE, and other inexplicable tthings happened/that eventually pointed to problems with the sd card. I had reflashed many times before this latest update without similar problems.

I hadn't had any hint of problems before the firmware update. I suspected that there might be a problem with non-sdhc cards. I reformatted mine with the n800 formatter and still everything seemed haywire. Finally I used a card reader to reformat and all SEEMS ok now.

Other than that, all seems ok with the update. I'm consiidering getting an 8-gig sdhc card...