I've been lurking on the forum for a couple of months but just joined today because I ran into the same problem as the OP. I have no idea if it's related to the post on the update being pulled, nor do I know if the update has in fact been pulled, but this is what happened to me:
I got the update notice this morning, but was at work and didn't want to stop to things to do it, so I canceled until I got home from work. I then did a manual update check, got the notice again, and began the update. About two minutes in, I got a "corrupt download" error. I tried manually checking for the update again and then got a "your phone is up to date" message.
I then did a soft restart, refreshed my profile and prl and tried again. Same "corrupt download" and then "your phone is up to date" messages. I then turned the phone off, pulled the battery, and restarted. I once again refreshed my prl and profile. Now trying for the last couple of hours, all I get is the, "your phone is up to date" message. I'm not in a 4G area, so I was attempting the download in "WiFi only" mode.
So either something is screwy with my phone, or they possibly did temporarily pull the update. At this point I'm just going to let it sit overnight and try to run the update again tomorrow.