Microsoft is planning to bring more Xbox Live experiences to Apple’s iPhone, iPod touch, and iPad, as well as Google's Android platform.
“While the Xbox Live experiences and games always work best on the Windows platform, we understand that some Xbox fans may be using other types of devices. To satisfy that need, we are working to extend a few of our Xbox experiences and titles to other platforms.”
All of Microsoft's current XBox efforts have done well on iOS and Microsoft isn't exactly a company to leave to money on the table or avoid recognition, it's another avenue for both of those things if Microsoft puts the effort into it. No mention was made of when we could expect to see these efforts put into to place but if we had to wager a guess, we'd bet it's not all that far off.
Given that Microsoft's Windows Phone is still -- as some would say -- 'ramping up', it only seems logical that Microsoft would target iOS and Android users as well, especially considering the market share Apple and Google have in the mobile space.