lets see, total tablest in use is some 200 millions, then even 0.13% is a nice number when you consider that Surface is out just a month or so ago. Firstgeneration product and for the first month. This is fresh new revenue streat and it is only the start. Every big thing starts small. New models, diffferent power and different sizes, are coming out soon. Now with distribution at Best Buy and Staples, this could be the beginging of some great things to come from MSFT!!!
Also, remember, there are many Windows RT models coming out from all top OEMs, so the total WIndows tablest are gopng to be bigger than anyone can think of.