Hello there!
First of all, thanks all for the great work! I'm in the process of recovering/unbricking/throwing_to_the_garbage an out-of-warranty Kindle 3 Wifi.
I'm having trouble flashing anything with the latest version of k3flasher (v06). So far I've tried to flash a uImage without success ending in a "Segmentation fault", although the "info" command works as expected. A couple of days ago I successfully flashed a whole mmcblk0p1.img without problems using a previous version of this wonderful tool, which I no longer have to compare... I'm on Ubuntu 11.04 64 bits if it helps. I include the strace of the command:
./k3flasher atk/image/mx35to2_mmc.bin program 0x00041000 uImage
in case it's of any utility.
Keep up the good work!