Dave --
The "Evolutioneers" have all been sworn to secrecy, under threat of having our finger nails pulled from our hands via rusty pliers if we, as so much as mention even a single new feature... Sorry!
I will tell you, I am very impressed with how solid v6 has been. Not a single "blue screen of death" for any of the testers. The new icons look fabulous. I find it hard to do my current projects in v5.5 after "working (read "playing") with v6.
There are several new property features including one for Text Objects. There's also new Script and Actions. Again, now that I've used/tested them in v6, I want to incorporate them into a current v5.5 project -- but I have to wait since the current test version has an expiration date.
DW has
not wiped out our Wish List with v6. There are still features for their future development, but the bottom line is -- you will definitely want to immediately install v6 when it becomes commercially available. Personally -- I can't wait... (hurry up Santa)