I’ve given up waiting for official ROM updates, and took the plunge into a ROM from xda-developers. I opted for Dutty’s WM6.1 and an very happy with the result. Noticable speed increase and less junk. No doubt once the official update is pulled apart by the clever folks over at xda, there will be another “cooked ROM” batch to get all the best parts.
Note to the unwary though, I’m sure you void any remaining warranty by unlocking and using unofficial ROMs…. it’s fun though, once your heart slows down after the initial attempt!