Adonit is beginning to roll out an updated version of Jot Pro ($30), a sibling to the other Jot family styluses we've covered in the past. Aside from the Bluetooth-equipped Jot Touch, this is the most expensive model, though it's still a good deal compared to most other styluses we've seen. The 5" long capacitive pen has a nicely-weighted metal body and a soft rubber grip. A screw-on cap protects the writing end when not in use, and can be attached…