This morning I began getting "The evaluation has expired" errors. I had just downloaded and installed the Feb 9 update to Beta 2 earlier this morning. Indeed, it could be 60 days since I installed Beta 1, but I guess I was expecting the 60 days to restart after installing Beta 2 since the actual release is about 1-1/2 months away. We're not trying to get something for free; we're just closely following the additions and changes up to the release in anticipation of making some application decisions. The message indicates I can request an extension, so please let me (and probably a lot of others) know what to do.
Allen