After trying a micro-SDHC card, my N810 no longer boots (well, it seems to boot, but then shutdowns, though I had no problem with the card before copying files to it). My N810 has the old buggy system (2.2007.50-2), so I think I need to reflash it. The wiki says to download the Linux flasher here, but I can find only flashers for the N770 and the N800, not for the N810.

BTW, it would be easier for me to have a flasher for either Linux on PPC or Mac OS X on PPC.