Another "leaked" image of Nokia's fabled Lumia 900 "Ace" smartphone, has emerged sparking fresh hopes of a Consumer Electronics Show 2012 appearance.

The new "leak" appeared on tech site GSM Arena which reported seeing the device on a Christmas card for AT&T's LTE network. Named the "Ace" on the card the image in-turn led to speculation the smartphone was the working name for the company's fabled follow up to the Lumia 800.

If legitimate, then the image confirms widespread speculation that the Lumia 900 would finally add a front facing camera to Nokia's Windows Phone offering. As well as speculation regarding the device's features the image added fuel to the fire regarding a possible CES 2012 appearance.

The news followed a previous report from Mobile Magazine suggesting it expected to see the new Windows Phone make an appearance at next week's CES trade show alongside Microsoft's new "Tango" operating system update.

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.

Lending credence to Mobile Magazine's report, a further rumour from BGR also emerged in December, 2011 similarly suggesting a Q2 release.

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.

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."