We just posted new releases of the H9 Control app for Mac OS X and Windows to the H9's support page: http://www.eventide.com/AudioDivision/Support/Stompboxes/H9.aspx
The main feature in this release is that there is now a store in the desktop versions of H9 Control. You can demo and buy algorithms from Mac OSX and Windows.
Other new features in this release are:
* Added import / export functionality for presets and preset lists to desktop version * Added the ability to enter parameter values and tempo values with the keyboard * Double-clicking the name of a preset or preset list lets you rename it. * Added account settings screen to show what Eventide account you're using and what devices are registered to that account