Android :: Implementing DLNA / UPnP (Win7 Play To) On Mobile Device

For a semester project, I had the idea to implement Windows 7's Play to infrastructure to either use a phone as the end point (the player) or to stream stuff from the phone to a Windows 7 machine. Does anybody have experience working with this API? Is this do able over a couple of weeks (prototype, just proof of concept, not end-user ready) or is it too much for a project of this scope? Note: I'm not looking for code samples, just an assessment of the feasibility of this project. If you have any documentation from MS or otherwise that would be awesome although not the crux of the question.

I discovered that the Windows 7 Play-to functionality is based on DLNA and any device supporting DLNA (I think) can be used as a destination for the Play-To context menu. However, I'm having a really difficult time finding any sort of documentation on DLNA. I'm wondering if you need to be a member of the DNLA to actually get access to the spec? Alternatively, I know DLNA is built on UPnP, it wouldn't exactly do what I want, but it would be a step in the right direction, so, to revise my question does anybody know of any open-source C/C++ or Java (preferable) libraries that would help me implement UPnP or DLNA?