Thanks for the app recommendation. I'll check it out.
@velvetkatze, I don't know any great ones right now but I will let you know. If you can't find a good app you may just see if you could use a good website like StarFall.com - they have some fun reading, math and spelling games as well as songs. It's about $30 for a year subscription. I used it with my oldest when he was 2. I even use the simple reading parts with my 18 month old right now. The downside (or upside however you want to look at it) is that I had to sit with him at the computer the whole time because it's not an app and I needed to help make sure he used it right with the mouse, etc.
You might keep in mind that there are not a lot of developers who bother to make apps for windows right now (PC games and programs yes, apps not so much). Android dominates the market in terms of number of users and Apple in terms of the amount of money Apple users spend. Windows tablets are just not dominate enough right now, so it's way down on the priority list
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