Some of you may know, but there was a bounty to get tethering a Blackberry to OSX out and it hit about $700. Apparently Daniel Pasco did it and claimed the bounty and will be releasing the software to do it.

Read up on it here.
http://www.alexking.org/blog/2006/10...rry-modem-faq/

Here is the link to the software called Pulse
http://brainmurmurs.com/products/pulse.php

already in discussion in

http://www.blackberryforums.com/mac-...oth-modem.html