Wow this looks pretty good.
HTML5 in-app purchases
Social Engagement (Leader-boards, Achievements, etc.)
Making HTML5 games that work on all platforms (iOS,Android,FaceBook,Chrome Store,Mobile Web)
Adding "Gamification" to business apps
As usual I am all about the in game purchases but the other features look good too. Maybe sometime down the road after the current to do list is complete it might be a good idea to implement these features.
Again, I feel that IGP, achievements, leaderboards etc are just as important of a game mechanic as jumping or WASD movement.
Let me know what you think.