HarpNinja 2.0 is finished development and has a complete new user interface, new quicklearn(tm) harp/music theory features, new tuner enhancements, and overall performance improvements. Stay Tuned, release coming up.
Android and iPhone versions are also on the way.
HarpNinja will also be going up in price with this release, but upgrades (for PC/OSX/iPad) are currently free to existing users so grab it before the new release if you want to save some $.
[yes, it was originally going to be V1.6 but I bit the bullet, took the tools out and did some redesign/development that was enough to make it V2.0]