Latest update to fix some issues with 0.44 is attached below. This update has some more ui tweaks and fixes the WPA decrypt bug:

1) UI interaction minor fix: Decrypt WEP / WPA tab now provide informative messages ("Select a cap file", "Select a dictionary file", "Select at least one John option") in the status bar area.
2) UI interaction minor fix: Decrypt WPA tab buttons are now context sensitive (ie. decrypt button does not go active until either John or Wordlist selections are correct, John button needs to be pressed to have john option buttons go active, etc.).
3) WPA decryption fully functional again.

Install version 0.3 from post no 1. in this thread (or any other working version), then apply my update. As per usual, make a back-up copy of the files to be replaced (Main.py, FAS.py, getinfo.sh, scan.sh, getmacmanaged.sh, getmacmonitor.sh, wepcaplist.sh, wpacaplist.sh, keylist.sh), copy the archive to the FAS directory on your N900 and extract within xterm in the FAS directory:

tar -xzvf faircrack0.45.tar.gz

Enjoy

Note: I think we have reached the limits of what the current version can do, the next step should be a major overhaul to be able to add extra functionality.

Edit 1: Attached file has a fix for delete WPA cap file button not going active until after dictionary file selected, which was in the first release of 0.45.