Verizon is possibly pushing out an over-the-air update v4.03.605.1 to the HTC Rezound which only just received ICS (v3.14.605.12) last week. The 104MB update is pretty hefty for only a few weeks of work, which has puzzled many XDA members and made things turn pretty ugly in the relevant thread. The reason I'm saying "possibly" is only one person at XDA has received it so far, which may indicate there's some sort of soak testing going on.
Update: A commenter (Cody) chimed in and let us know he's currently getting the OTA as well. Anyone else?
Having now read through 20+ pages of comments about half of which are literally baseless and ignorant garbage written by trolls with nothing better to do (what XDA update thread would it be without these, right?), I have pieced together a few details and confirmed that the OTA is indeed legitimate by verifying the update's cryptographic signature and checking with a source close to Verizon.