Yes. Sounds like exactly the same issue. Others have posted about it on the Mac support forums as well. It seems to be a bug affecting how it wakes up from autosleep.
I've never had it happen when I've manually slept the computer or when I closed the lid. It also doesn't happen consistently.
I really don't want to go through the trouble of taking it to the geniuses. It seems to be a software bug that I imagine will get fixed, so I'd hate to have to restore everything etc. My nearest Apple store is an hour away too, so for me at least, the hassle of getting it looked at is far worse than the problem itself.
In the interim I've just disabled autosleep and simply close the lid to sleep it. Haven't seen it again so far. Obviously I'd prefer if everything worked as it should, but I'm sure there will be an update to resolve the issue.