Research In Motion has signed on as a part of the Digital Living Network Alliance (DLNA). If you're not exactly sure what the DLNA is, it's simple. In essence it's a capability that allows you to connect to other devices and share different types of content between them. This capability does not need new hardware and can be simply "turned on," per say, by upgrading the OS.
It seems that this will play a key part in RIM's future since we know they're working a wireless media server. This could be one of the reasons why RIM is setting up the DLNA right now. Hopefully this feature will come to the PlayBook soon as well.