I just bought an Asus Windows RT tablet, I am loving it however I was struck by the lack of apps that I had on my older Android tablet. For instance, Paypal is not there, a lot of Google apps are not there, Angry Birds isn't there, Need for Speed games, and many more apps that I loved aren't in the Windows store. I can use Internet Explorer to do a lot of what is missing in terms of apps, but it is slight disappointing. Windows RT is great but its lacking in a lot of apps that are in Android. If there is anyone out there reading this from Microsoft, please push Android/iOS developers harder to make apps for Windows RT/8 as well.
A modern calculator app would be very helpful.