That's great to hear. We fixed a problem in previous versions of LimeWire where we were doing unnecessary dns lookups on new incoming connections, which could freeze on the Mac in the manner you specified.

We changes this code, so hopefully it will not occur in the future. It can still freeze initially on startup because there are some required dns lookups that we have to do, but other than that it should be fixed. Please let us know if you see freezing occurring again in the middle of a LimeWire session.