Windows RT has been a bit of a problem child for Microsoft, and it's led to all sorts of speculation about the platform's future.
The latest gossip is that RT will be merged with the smartphone-only Windows Phone OS, not with the next Windows (Phone) 9 generation of releases but with the one after.
That's what regular Microsoft leaker WZOR is telling Winbeta, anyway. The reportedly trustworthy source says Windows/RT/Windows Phone 9 will arrive in a year's time, and will be structured roughly like it is now.
Generation 10, however, will see major change. WZOR reckons Windows 10 will be a full cloud OS, with the first concept build due to be presented internally at Microsoft next month.
The important point, though, is that Windows RT and Windows Phone will be combined into a single platform covering both tablets and smartphones. In other words, Microsoft will fall into line with the more conventional wisdom followed by both Android and iOS.
However, the change isn't exactly going to come quickly, as even assuming the shortest lifecycles we're likely to see, Windows Phone 10 is a minimum of two years away.
That's a long time in the mobile world, and Microsoft can't afford to show anything less than full commitment to its unloved tablet OS in the meantime. That required commitment starts with Windows RT 8.1, which Microsoft has just sent out to manufacturers ahead of its wider availability in the autumn.