I am glad to announce that the Userspace Video4Linux framework for the Raspberry Pi is ready now!
The framework comes with a new Video4Linux2 driver for the CSI Camera Board. As the driver is in an initial stage, for now it essentially behaves like Raspistill (I tried to preserve almost all the options available via command line)
To quickly install UV4L on Raspbian, please read the following instructions
NOTE: The Raspicam module has NOT been funded by the Raspberry Pi Foundation in any way.