FYI - The battery drain is apparently connected to the camera in combination with the Qualcomm processor, according to Chris Chavez in the "wins and fails" on the Phandroid podcast
He talks about it at the 54:04 mark
Mobile Roar Podcast 35 - YouTube
So, it's a Google thing that will hopefully get through all the carriers quickly and fix battery drain. I haven't really used my camera since the update and my initial experience was fine with the update. Just wanted to post up the info, for those that weren't aware (I wasn't, so was actually relieved to hear that in the podcast).
In the meantime, I'll just be charging my phone more often than normal.