First question is, are they referring to the 360 when they say next generation Xbox platform?  Secondly, is this in relation to where Primetime is going.  300,000 people real time, with money on the line.  Sounds like it to me.  I think they are expecting this to take off in a big way.

http://jobs.gamasutra.com/jobseekerx/viewjobrss.asp?cjid=18691&accountno=266

Company Profile:

Microsoft Game Studios Overview: Microsoft Games Studios is looking for experienced game developers to work on next generation Xbox platform titles and Windows games for the first-party publishing team. Come join the publishing teams that worked on games such as Jade Empire, Fable, Conker, PGR3, Rise of Nations, Zoo Tycoon, Dungeon Siege, Vanguard, and RalliSport Challenge. Work with our top first-party development partners to help ship a great first-party line up for next generation Xbox platform. Job Profile: Software Development Engineer | Microsoft Game Studios  | Redmond WA USA | Full Time Details | Locations | Company Profile | Contact Job Description: *To consider similar job openings on MS Careers, use keyword: GAMES Want to be a part of the games and entertainment revolution? Join the server-backed games team, part of the Xbox LIVE team that's responsible for creating games and entertainment for mainstream audiences to enjoy on Xbox and Xbox LIVE. . We are building the games, the console interface and logic, and the server support for all of this. Both the games and the dashboard experience will be deeply paired with dynamic server support to create a compelling, fresh scenario each time. We are a small, entrepreneurial team working together to get things done very quickly in an agile environment. If you want to work in a space where you will get all the responsibility you can swallow, and run as fast as you can, this team is for you. We want an experienced server developer to help develop our server architecture. We are building an extremely high performance system to extend console games to the server in new ways; creating a completely new set of web services to support dynamic programming information of games and scheduling data; integration with the Xbox LIVE services and Xbox.com infrastructure to deliver an end-to-end architecture with our partners. You will be designing and coding our platform with C#, working with Ops to deploy an instrumented and monitored system, working with our tools team to enable others to work with our platform, in short everything it takes to create and ship a product with a small team. Some sample requirements will include listing of current events hosted by our server environment, interacting with my schedule and my friend’s schedules to play together, and building a backend capable of hosting a 300,000 player game in real-time with real money on the line (anti-cheating, etc). Qualified candidates will have 3+ years of web service / platform development, including strong experience with highly scalable systems and fault tolerance. Good experience in server development with C#, ASP.Net, and SQL is required. Familiarity with server technologies relevant to internet apps (IIS, web services) is also required. Good communication skills, independent drive, customer focus, ability to ramp up quickly on new technology, and driving for results are all expected. Job Details: Categories: Programmer / Engineer Experience Required: 3 yrs Platforms: Xbox 360 Minimum Education Level Required: Secondary (High) School Work Site: On site

not possible at the moment and it is just a rumor.If gonna believe this then you shud also believe the theories about the world ending in 2012

So your position is then that this is a bogus job offering, made up to spread false information/hype about an unlisted game, in an uspecified genre, that microsoft studios is apparently working on? 

Does that really make sense to you?

It could be something as simple as the backend for 1 Vs 100.

a sequel for 300.

MS has been working on a huge MMO before. This is not new. But interesting that they say 300,000 players.

Interesting...

Nice..

These are my thoughts aswell.....

And to that Metal gear guy...Nice one! I'm gonna go ahead and say that Halo 4 will have 300,000 online Mp.....