Audiofile Engineering has released Loop Editor 2.0 and announced Myriad 4.0 (which is the new name for the next version of Sample Manager, the full-featured Batch Audio Processor for Mac OS X). Spectre is also on sale for a limited time.
A replacement for the Apple Loops Utility, Loop Editor goes above and beyond with support for all loop types, beat detection, ACID files and more. New features include the ability to export Slices, cropping, full AppleScript support and First Aid and ReCycle Converter tools. It is available exclusively on the Mac App Store for $29.99 (that's 40% off the regular price of $49.99).