Hotkey 2.2 fixes issues with not using t() everywhere, not detecting browser/OS combinations for descriptions, and not implementing standards for modules.
The 2nd release of Hotkey contains a new implementation of adding hotkeys, a installer that adds a few default hotkeys, and a new feature that adds hotkey links on node pages.
The development version of hotkey that includes a few examples in the admin settings page to clear up how the module is used. A few fixes were also made to text that wasn't included in the t() function.
