The DNG contains almost all the same information as RAW. There are few camera specific things, like Nikon's Active D Lighting, that aren’t duplicated in DNG, but that doesn’t matter if you’re using PS or LR anyway. I used the DNG converter for a year or two when I was using an old version of Photoshop and it worked fine, just required an extra step to batch convert my files after DL-ing from the card.
What I don’t get is, why they have to revise the RAW files with every camera model. It’s my understanding that they’re ‘improving’ the codec, but is that really necessary with every camera model? What can you improve in the Codec? You can make the files smaller, and/or compressed faster. But DNG continue to be slighter smaller than RAW files. What gives?