I thought the point was to get away from Adobe!
There DNG format is no better than any other and worse if you aren't aware of what the various switches do. Like the inability to recover the original raw file (unless you set it to preserve) when you want to use a program that doesn't accept DNG (apart from Adobe, I can only think of DXO 10)
My vote is for optional catalogs and just plain file management like Bridge does. This is a deal breaker for me, i really don't like catalogs but appreciate some do.