Battery life with data or wifi on has been bad for a while now. If you turn those off you shouldn't lose more than a couple percent throughout the day
Thank God that this is just a bug and not actual usage!!! I'm also on unlimited, but I don't want to get throttled either. Got the data usage warning, and it shows the Google Play Store used 13GB of data in just 8 hours.
I flashed the Nightly (10.1-20130601-NIGHTLY-targa) yesterday, so the bug is still there. Is this data usage bug related to the bad battery performance that I'm also getting? I dropped 27% without any phone usage what-so-ever (my phone sits in a locker all day).