The fact that Microsoft stopped developing a technology that hardly anybody used isn't a surprise, I don't know of any business that would keep supporting something that was so obviously not going to succeed.
actually I've done this report in 2011 and 2012, and at this time this was really a good question because there was not so much competion. Nowadays as maxerison unerlined, there is a lot of competition (and I'm happy to still have a good visibility). I was even wondering if it was interesting to publish my report this year (I mean not only for my ego) but several devs told me that it was inspirational and give them energy to read such posts...
PierreA, it was indeed inspirational. Partly because you're immensely talented. It's easy to make utilities with programming chops. But you made something so much more, you made an artistic, learning, _EXPERIENCE_. Kudos Pierre, your apps are super high quality and the colors are just blooming, very fun stuff, even for an adult like me to just mess around and watch the pretty colors fly around, or the ball physics. Cheers mate.
Thanks - it's just because I'm still a kid somehow, so I like it to be fun for kids like me ;-) For the UX, I worked in this field so I've got some experience/feeling/theoric knowledge in this field. Pedagogy knowledge comes from having homeschooled kids - you need to learn (and also you experience) how kids learn the best way.
It wouldn't matter. He's got the ball rolling & momentum + brand recognition. It would take as long if not longer for a newbie to try & copy his methods. Even if they do, it doesn't mean you'll succeed or even persist through adversity.