Should have been only around 35mb. That's how big my dl was.
The update added quick memo, sprint installer and an updated my zone account app. The 2nd is a background app so you won't see it. They were crap to me so I removed em.
The update also supposedly fixed the error 67 people were getting. It also did some patching to the existing apps, boot partition and recovery partition and wrote a new radio Image.
So to make all this simple... yes the only thing you will see a difference with is the addition of quickmemo.