Thanks for adding the release all modifiers action, i cant wait to use it in a future release, it will be a lot quicker than manually releasing them all one by one! 
(Although i still cant see whats wrong with enabling assistive devices!? ;) Its a lot less Scary than installing something to the Kernel! honestly i really wouldn't mind checking the box for assitive devices if it would enable this functionality!)

Also, please could you consider adding the option to show floating Icons to show which action, in which program, you have just performed? (like remotes do on a normal TV!) 
It could be helpful as a training mode that would help to train your memory to which functions you have programed to which buttons, or it would just be good way to keep the user informed of what they are actually doing! (and it would also solve my problem of knowing which mods are toggled on, as it can be a bit problematic when you've forgotten that you have a mod toggled on!)

By the way, kudos for the iPhone functionality, it looks fantastic! 
I cant wait to get my hands on one !!!

Thanks again, 
Acam