I thought it said this summer? It is still spring
I know, but I've read and heard people say they have already had invites.
A guy on Leo Laporte's 'The Tech Guy' called in on Saturday saying he was still getting Mavericks updates for his public preview copy of Yosemite.
And I'm sure there's a few people on here who have said they've got it.
I'll link to them if I find them again.