OK, so here are my answers to some of these things listed:
I use the pattern lock screen, but if my phone is already open, I am present with no lock screen on a call.
Lapdock - don't have one, good to know. WT version is 3.0.0 in this update.
Mass Storage being back - good.
Smoothness - while a bit smoother, it is also sucking the life out of my batteries hard core.
Improvements - a lot of little incremental improvements all throughout the system.
I did not do a FDR prior to updating, nor post update - however, I was running a slim system after reinstalling from scratch back in February.
If you had 1000 as max CPU speed before, it will nto get bumped up on JB,.
If you already had 1200, it should not get bumped down.
Camera screenshot sound - uninstall and reinstall if you already had it installed previously. Good to know.
FM Radio - the FMRadio service was removed from the build, so it is doubtful that that program will ever work again.
I'll leave out all discussion of root here.