GUI toolkit that actually looks like it's been designed to work well on a touchscreen. Button and sliders are tangible. Only rotating elements are incredibly large and easy to manipulate. A lot here to like.
Perform daily/weekly tasks to earn points towards your next level. Each level unlocks gear and equipment for your avatar as well as a new title. Don't be your "Average Joe" when you can be a "Global Super Hero" and make a difference.