Microsoft Patent Hints at New DLC Purchasing Method
Under the system, if someone invited you to play a game of Halo 3 and you didn't own the particular map they were playing on, Xbox Live would gladly present the option to buy the content right then and there. It will be interesting if this would allow you to pay an exact amount for content without having to buy Microsoft point packs.
Keep in mind that this patent was filed in August of 2008, but has just now been cleared. This could point to an upcoming feature for the Xbox 360 or just be a patent land-grab.
From The Chatty
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I vote for patent land-grab.
http://www.msversus.org/microsoft-patents.html