Scott Conroy

Mobile Apps Stores: Billing Systems May Determine Success

PayPal has about 150 million users and I would say that there is a significant overlap of smartphone users and PayPal users. This overlap will only increase when considering that Skype is likely to be one of the most popular applications on most smartphones (and paying for Skype is very easy with PayPal).

Is Microsoft planning to offer applications for non-MS phones? I haven't heard as such. Assuming they're not, one shouldn't count total carrier subscribers, but only those subscribers using phones based on a Microsoft OS. That number is a tiny fraction of the total number of subscribers.