I'm kind of concerned that maybe WP8 just isn't actually even done yet. I mean, why else would we only be getting an SDK preview at this late stage in the game?
Um that in and of itself is horrifying if they don't have the OS finished yet and we are a month and a half away from release....
Exactly why is this a problem? Why should it indicate a problem?
Look at the turn around time for Mango's release. It hit RTM, and within a very short time (about a month) we had it released to the public.
Even with Windows 8 itself, it went RTM at the end of July and by the middle of August it was available to the public. The timing of the October general availability parties is purely marketing.
Don't think for a moment that OEMs don't have access to nearly every build of WP8. Don't think for a moment they're not testing it and running it through the ringers.
RTM is gonna happen within the next week or two, more than likely (personally I'm speculating the 12th due to the SDK news we've been hearing). We're 7 weeks away from public launch... nearly 2 months yet. Heck, they could even take up to the 28th of September and still be in good shape for launch.