I'm playing around with ff 2009.2 (US-20091116.iso), full install on SD card, and there seem to be a few broken scripts/links, not only the umts-connect (fixed by upgrading).
"Change panel" doesn't work from start menu, and neither does "Users/Rootpasswords".
There are also a few remnants of German in the start menu entries, e.g.
"PcManFM Dateimanager" instead of "PCManFM file manager",
"Openbox Einstellungen" instead of "Openbox configuration"
"Dateien/Verzeichnisse suchen" instead of "Find files/folders"
But all the important stuff seems to work as stable and well as always