I've had 8.0 for several days now, and took it on a 250 mile (round trip) road trip Saturday. I've noticed several instances of lost or degraded capabilities from V7.1, and thought I would start a catalog. Anyone should feel free to add to this list with anything they've noticed. I don't need to suggest anyone dispute anything they think is listed mistakenly; I KNOW that will happen! 
In no particular order:
In no particular order:
- Media Player
- Lost - Jumping through a list of songs / albums / artists alphabetically (major since I have over 3000 songs / 350 artists / 300 albums on my USB stick)
- Lost - All my favorites! I'll have to rebuild the list from scratch
- Lost - All the album art. I didn't think I'd miss that, until now that it's gone
- In all farness, I haven't had the skipping problem at all in V8
- Navigator
- Degraded - Anyone notice that the blue route line is coarser / blotchier than it was in V7.1?
- Degraded - Route selection seems even worse than it was in 7.1. I know some folks had issues in 7.1, but the ones I experienced were relatively minor. Saturday and Sunday I saw two major ones:
- Driving from Goose Creek SC to Aiken SC Saturday, the route displayed was fine until I got within about 50 miles of Aiken (heading to USA Aiken). Suddenly the route changed, adding about 15 miles and 15 minutes to the trip. I continued on the original route anyway, and got there with no issues and no delays. No indication of a traffic-based reroute either. It just changed for no reason.
- Driving from Goose Creek to Moncks Corner on Sunday, route REALLY wanted me to take 17A. From my house it's a toss-up between 17A and US52, with 52 being 1-2 minutes faster. I took 52 since the traffic showed no major problems on that route, and there's construction on the side streets to 17A. Navigator kept trying to route me back to 17A. including U-turns to get back to roads connecting 52 and 17A. Also indicated I should take side streets rather than stay on the major roads, even though there were no problems ON the major roads.
- Autopilot / TACC
- Lost - When driving on a non-limited access highway, autopilot limits speed to limit + 5. Fine. Still does. But now it resets set speed to lower speed when it enters a speed zone. Used to be that you could set the TACC speed anywhere above the posted speed limit (up to about 90 mph, anyways), and A/P would limit the speed to limit + 5. So driving down a 55 mph road, A/P would go 60. Go through an area where limit reduced to 45, A/P would slow to 50. Speed limit rose back to 55, A/P would resume 60 mph without having to make any manual adjustment. (I would like to have seen an option added to have TACC do this even without A/P engaged). Now, once A/P slows to 50, it will not resume 60 when the speed limit goes back to 55. You have to manually reset the speed using the stalk.
I suppose this prevents sudden and perhaps unexpected acceleration to the set speed if A/P is disengaged by jerking the wheel, bit should have been implemented that way, instead of just resetting the speed at limit +5. IMO, requiring more manual inputs is a big step backward in this case.
- Lost - When driving on a non-limited access highway, autopilot limits speed to limit + 5. Fine. Still does. But now it resets set speed to lower speed when it enters a speed zone. Used to be that you could set the TACC speed anywhere above the posted speed limit (up to about 90 mph, anyways), and A/P would limit the speed to limit + 5. So driving down a 55 mph road, A/P would go 60. Go through an area where limit reduced to 45, A/P would slow to 50. Speed limit rose back to 55, A/P would resume 60 mph without having to make any manual adjustment. (I would like to have seen an option added to have TACC do this even without A/P engaged). Now, once A/P slows to 50, it will not resume 60 when the speed limit goes back to 55. You have to manually reset the speed using the stalk.
