I don't care how small the market is. Its seriously the same problem with skype after the acquisition. The skype app was available for ALL other platforms even symbian, but not for wp. Do you know how stupid that makes a user feel when their own parent company of their phone does not have an app for your phone? Friends with iphones laughed as they could facetime with other apple users. They laughed even harder when they found out that I did not have a skype app which was owned by MS to message with them. I told them, "Yeah, how about Tango? That is also on iphone, right?"
Back up MS all you want. This is really unacceptable treatment of their core user group. I am thick skinned so do not care about the banter between friends, but some do care about how they are perceived.
If its the same service, its just a GUI update thats needed. Not that its simple, but its not impossible for a very small team of a few engineers.
I love this comment ;-)