I can log on battle.net. The patch is coming 19.00 CET. Source: Blue post. I'll see if I can find it.
Edit: You can go into Starcraft II Beta/Support/ and edit realmlist.stf and change eu to us. It'll enable you to download the newest patch with the editor. You wont be able to play SC2 online until the patch goes live on EU, but at least you can use the editor while waiting.
Quick indeed.
While Patch 9 from outer space was pretty much a screw-up, patch 10, which introduced the larva bug was fixed on the spot.
Everywhere at once too.
Strange though that they would still have problems with patches over bnet.
They've been doing this for 10+ years now after all.
Ghan has said he has fixed this. Monovertex please confirm this fix. This was only a problem with people that had signatures in the upper levels like not the special members but the respected members.