Microsoft's Windows Phone Mango Commercial Release 2: What's inside

Keen-eyed Windows Phone watchers may have noticed this week a seemingly new operating-system version listed on the Nokia Lumia 900 spec list: Mango Commercial Release 2.

What is this thing? Could it be "Tango1" -- the TangoMango thing that supposedly is/was the next version of the Windows Phone operating system to follow Mango (a k a Windows Phone OS 7.1)?

Nope. Microsoft officials confirmed this week that Mango Commercial Release 2 is just Mango plus the 8107 service release. (The 8107 release is the bunch of Windows Phone fixes anchored by the "disappearing keyboard" fix.)

Microsoft officials said late last week that the company had delivered the 8107 service release to its carrier partners and that it would be up to them as to when, how and if they rolled it out to existing Windows Phone customers.

A couple of other Windows Phone tidbits -- beyond the Windows Phone LTE news from earlier this week:

• The Nokia Lumia 710 is available for sale on T-Mobile as of today, January 11.
• The Nokia Lumia 800 -- the N9-like phone Nokia rolled out for select European and Asian customers starting last fall -- is coming to the U.S. market, too. It's already for sale unlocked at some retail outlets like Fry's. The Lumia 800 also will be available, unlocked, in Microsoft's own brick-and-mortar stores "in the coming months," Microsoft CEO Steve Ballmer acknowledged this week.
• The just-announced HTC TItan II also runs 8107, as Tom Warren noted over at The Verge.

And how bout that big Nokia ad for the Lumia 710 splashed across the New York Times Web site today?

Here comes the real Windows Phone marketing ... in the U.S, at least (and at last).