It’s only Tuesday, but if you’re having trouble keeping up with all the rumors swirling this week around various combinations of Verizon Wireless (NYSE: VZ), Apple (NSDQ: AAPL), Microsoft (NSDQ: MSFT) and Google (NSDQ: GOOG), here’s a recap:

—Verizon-Microsoft: Microsoft is in discussions with Verizon Wireless to launch a touch-screen multimedia cellphone on the carrier’s network early next year, according to the WSJ. Quoting people familiar with the matter, it says Microsoft’s project, which is code-named “Pink,” will add new capabilities to its current phone operating system. This would make some sense since Verizon is the largest U.S. carrier and it doesn’t have the iPhone exclusivity (or at least not yet).

—Verizon-Google: This report—that Verizon may be striking up a partnership with Google’s Android—seems the least plausible yet. The carrier has yet to join the Open Handset Alliance, which is the organization looking over Android’s development, but VentureBeat discovered a job description on Verizon’s web site tha seeks an “Android Devices Expert.” The other evidence the story points to is that “an unnamed CDMA carrier is getting code developed for a chip that would allow Android to be supported on CDMA.” But that could be for other Alliance members, like Sprint (NYSE: S). Still, nothing can be ruled out, especially since Vodafone (NYSE: VOD), Verizon’s co-owner, is a member.