This rollout is following the same pattern as others. Employees got it first, then yesterday a small number of customers got it. Last night, Teslafi showed installs + pending = 450. Today, roughly 12 hours later, Teslafi shows installs + pending = 450. So no one new is getting it so far today. I hope we might see a wider distribution over the weekend.
Among the 16740 cars on Teslafi, fewer than 2400 are in the beta. So very approximately, almost 1 in 5 have received 10.10 so far. The rest of us are waiting.
Among those who have installed it so far, 62% came from 10.8.1, 38% from 10.9. That ratio is not too dissimilar from the overall ratio of 10.9 to 10.81, so it appears that Tesla is not favoring one over the other.
I guess it should be obvious from those percentages that no one new is getting the beta yet. Perhaps that will change once 10.10 is distributed to all of the existing beta users.