MacBibble 1.1 for Mac appears to successfully tackle two persistent bugs - problems with saving files, and the word "Buzzwords" taking over Photoshop's menu bar - in addition to adding nearly all the functionality of Bibble for Windows 2.0.
The best new feature in MacBibble 1.1 is the ability, from within the General Options preview window, to set a neutral point off an object in the photo, then apply that same neutral point to other photos from the same assignment, singly or in batches. Preview speed from within the MacBibble application is also noticeably improved. The speed of the MacBibble file format plug-in for Photoshop, which is what I use primarily, is an order of magnitude better.
Bibble for Windows 2.01 has also been posted. It fixes a batch processing bug as well as a crashing problem when setting ICC preferences.
Bibble v2.01 for Windows/MacBibble v1.1 for Mac is US$99, and may be used for 10 days before registration is required. Author Eric Hyman indicates that he is not accepting new registrations until he returns from vacation on October 9th.