Yesterday I uploaded version 1.0.1 of maemo-pan to the Diablo extras repository. This new version finally fixes Bluetooth-PAN on Diablo.
Nokia recently uploaded a fix for handling DUMMY network connections in Diablo, which is needed for getting Bluetooth-PAN integrated into the connection dialog. If you install maemo-pan 1.0.1, the dummy-network package from Nokia will be installed as a dependency automatically.
Nokia's networking fix uses a hardcoded name for dummy connections, so you'll have to connect to "Dummy network" instead of "Bluetooth-PAN" (as it was on Chinook).
Apart from fixing the networking issue on Diablo, maemo-pan 1.0.1 is the same as maemo-pan 1.0. New features will be added in a later release.
maemo-pan 1.0.1 is only interesting to Diablo users. If you're running Chinook, maemo-pan 1.0 is fine. There is no version 1.0.1 in the Chinook extras repository because of that.