Attached to this post you'll find an archive containing an updated, FOV-unlimited version of the PanoTools 2.8.0 library for OSX as a Universal Binary. This has been tested with PTGUI 6 beta 8 on both Intel and PowerPC systems. Click here to download.

I've also added a download link (at the bottom of the page) for enblend25 Universal version, from the Hugin folks.

--- Installation Notes ---

Copy the PanoTools.bundle file from the download into the same folder as your PTGUI application. For instance, if you installed PTGUI.app in:

/Applications/Stitching Software/PTGUI.app

Then put PanoTools.bundle here:

/Applications/Stitching Software/PanoTools.bundle

In other words, just make sure PTGUI.app and PanoTools.bundle are side-by-side wherever they are, and you should be fine. No further configuration is needed - I don't know why there is an option for the path in Preferences, but it doesn't seem to be needed.

--- Download Links ---