X5 M-Sport: Make sure you know what you are doing so read through a bunch of threads on the Navigation forum because it CAN be screwed up. If you are under the original manufacture warranty then a screw up can be fixed likely no problem. If not under that warranty and it gets chunked, it's gonna cost you to have the dealer fix it.
Safest is to let your dealer do the upgrade. Second safest is to buy the disk yourself for a few bucks. You can get it for around $10-15 from your local dealer (p/n 01 59 0 141 891) or online at getbmwparts.com

jsears - Good to know all that info. No difference really with v32 as yet proven. Just thought I'd ask since it is in all likelihood the last one they will release so I figured might as well have the last one. Stealth One is awesome, but hard as hell to find now (occasionally on ebay) and likely will not be made again. I was curious about the floor mats because the floor liners are evidently heads and shoulders better then the other two choices for rubber floor mats that BMW offered. I haven't bought them yet, but I probably will. Post a few pictures of yours, I'd like to see the one on the back seat.