Interesting story.
I assume it would be a big deal to many (businesses and education/students).
The story says there are no plans to do the same for Android. Microsoft opting to throw in with the side where the real action, money and growth is, I guess?
Assuming it works well, this could spur many sales. In fact, the timing is interesting...I can see someone from Microsoft appearing onstage at the iPad 3 event to unveil/demo this. And a section of the iPad 3 part of Apple's site touting this.
I would assume Microsoft built it at Retina Display settings, and that the crisp sharp text and PowerPoint and Excel elements would make for a nice demo to highlight the new iPad display.
A welcome change from the usual "sword and dragons" and nausea-inducing race gaming demos.