Overall it looks very good, software got ported to the new platform, a PIC18F2550 microprocessor with the major advantage of having an additional USB port. The board I am using is the MuIn USB from droids.it, which is resold worldwide.
In this version I am still relying on digital RC servos, which are fast but not as precise as I want them to be. For GPS tracking it is good enough, put for panorama pictures like the Gigapan I will probably switch to stepper motors and a single gear. But that's a minor change.
The other decision to make is how to control the tripod.
- Tripod has LCD and keyboard: More expensive to build and buy
- Tripod is configured via a laptop but operates autonomous: a good compromise
- Tripod is controlled by the laptop: You have much more options like reading the camera settings, preview images,... utilizing gPhoto2 libraries
For a GPS Tracker I would probably decide on option 2, for panorama applications I personally prefer option 3. So maybe the result is two different models?