Initial observations from the update and ~10 minutes of "regular" use:
1. Once things "settled down" after the first boot, everything seems snappier. No more unlock swipe lag or delays when swiping between the homescreens.
2. Startup speed seem a tad faster (and will hopefully improve with time). No noticable difference in shutdown speed, unfortunately.
3. The Madden 11 game requires a big download (much like a Gameloft HD title) that they recommend doing over wi-fi. I just tried it and it would NOT connect to the EA server. Presumably this one hasn't gone live yet. NO idea if it's the full game or a trial version like Need for Speed was.
4. VZW Data Usage widget is small, unobtrusive and actually seems pretty cool if you're not on an unlimited plan
5. Video playback with the stock video player app seems a bit smoother and more stable. Occasionally I would get lockups when starting a larger 720p video. I just tested it with a few big videos I recorded on the DX itself as well as a big wmv video that would occasionally hiccup. Everything performed flawlessly
6. Cannot notice any changes at all with Google Maps
7. Contact list is now unfortunately slower to appear and even more sluggish to scroll through than before. Still no option to sort "last name, first name" like my OG Droid 1 on 2.2. What a bummer-damn Blur!