If you are doing some navigation in unfamiliar territory without the GPS and other navigation gizmos, you'll find the Brunton Quick Reference Card Set for Navigation handy... "You don’t need an internet connection to have the piece of mind of information at your fingertips. As experts in the field of observation and navigation, Brunton offers this lightweight and durable eight page reference set that can help you better explore the backcountry.

Version 3 of the Theodolite Augmented Reality Navigation App for iPhones and iPads is now out.  Version 3 can now allow movie recording that you can have watermark overlay and set the quality of the video. It also has three large format stadiametric rangefinders for hunters and military users.