Lots of companies might be making them but not a lot of planes are flying with them. Icon is supplying an AoA as standard equipment. So perhaps one of the innovations here is simply that they are putting an AoA as standard equipment on the plane. In addition, the presentation of the data seems very intuitive as compared to the examples you mention in a subsequent post. I'm sure as with any instrument we would get used to its presentation but the way Icon has designed their AoA it appears more intuitive and much easier to read. Plus the extra touches of having the visual feedback on the gauge for best glide and approach seems like a decent value add.