Microsoft and Nokia Set to Tango CES 2012

New rumours suggest Nokia and Microsoft are set to unveil the new Windows Phone Tango-powered Lumia 900 at 2012's CES.

The rumour stemmed from Mobile Magazine Tuesday, which reported it expected to see the new citrus flavoured Windows phone update make an appearance at next year's CES trade show.

Though no solid information has been given by Microsoft the upgrade to the company's current Windows Phone 7.5 Mango OS is expected to host a slew of new features. Chief among the expected changes is added support for smaller screens, smaller chassis sizes and LTE - a fancy term for 4G.

Better still for avid Windows Phone fans, further rumours suggest the OS may well be unveiled alongside Nokia's fabled Lumia 900 smartphone. News of the company's follow up to the Lumia 800 broke earlier in December via tech site BGR.

In its report BGR alleged it had been "told by a trusted source" that the 900 would hit American stores in "early" 2012 - right about the time CES is set to kick-off. Continuing its run into the realm of rumours and hearsay, BGR went on to allege that the new Windows Phone would run on a future, unconfirmed, "Tango" version of Microsoft's mobile operating system.

The new rumour follows a similar report released by CNET UK in November. In it, like BGR, CNET UK reported that "a new top dog-and-bone [the Lumia 900] in Nokia's Windows Phone line-up, to arrive next year."

The site based its claim on an advert by Nokia designed to encourage app makers to develop products for the Windows Phone ecosystem. The ad shows-off the new unnamed device going on to challenge developers to "dive" into the "dynamic new [Windows Phone] platform."

Unfortunately, for those eager to see Nokia's next entry into its Windows Phone series of devices, the company has issued no official information on the Lumia 900. When asked about the rumours Nokia representatives clarified, "[a]s per our longstanding policy, we do not comment on rumour or speculation."