I got an update last night as well, mine was only 85 MB though. I've noticed a couple changes, but version still shows 4.0.4.
- Brightness slider in the pull down menu
- When writing a text message, the attach button is no longer stacked below the send, it's on either side of the entry field now
- My main clock widget on my home screen is much smaller now? :s
- Shows phone number below contact name in a messaging conversation now
Give us Jelly Bean already!