If you look at the update history on gateways main page there is only about 3 days between the announcement that they released the beta of 1.1a and its actual release. I thought their last update on the 1st of this month indicated that the beta for 2.0 is being tested; since the changes between 1.2 and 2.0 are larger ones I'd expect the beta period to be a little longer (you also have to factor in that with the release of the clones, they need to abilities of 2.0 to set them apart from the competition).
It's been almost exactly 2 months since 1.2 came out, and they first showed off 2.0 a little over a month ago. So adding all those facts together its not unreasonable to expect 2.0 within the next week or two. Of course this is really all just speculation on my part.
With that being said, if they are beta testing the 2.0 firmware right now then team must be really small, otherwise I would have expected to see the beta leaked somewhere.