I stopped by the South Florida auto show for lunch yesterday, and saw the 5GT in person.
It is basically a new 7 with a hatch, and I saw that in a good way. I had a chance to drive the new 7 for a weekend and I was seriously amazed by the interior and the engine. The 5GT is every bit as nice as the 7's interior with the 10" i-drive and unreal backseats.
They had the 550GT at the show, but the reps assured me that they will have a 535GT and 535GTx drive available which will go on sale December 8th.
Don't know if you guys caught it but the December issue of Car and Driver seems to have the first real non-camo front and rear shots of the F10. I was impressed. Time to sell the '07 550i!