If you have a Pearl, 0.6 isn't quite ready -- 0.7 should be better. See the mailing list and Patches section for things, there are some new udev rules, script fixes and whatnot. Starting with 0.7 there will also be official RPM packages released along with the code.

(you can also get the CVS code and build from that)

Please also dig into the thread aboud btool hanging; it appears there's a bug in the .61 and .64 (at least) firmwares on Pearl, and .71 upgrade fixes it:

SourceForge.net: barry-devel