Despite I don't like doing premature announcements of my projects, I've been kind of forced to do it for tmpfs. The reason is that SoC's deadline is really close now and people should have a chance to test it. Not to mention that the code won't suffer any serious improvements in the subsequent days, so delaying the announcement is not worth it either.

You can read the announcement in my mail to the tech-kern@ mailing list, which also includes a step-by-step guide to test tmpfs.