Based on a couple of days walking round the golf course (home now) I think people are way overstating this 'the course is green' meme. It is only too green if you compare it to 2006, a standard by which virtually every course in recent Open history would be too green. There was an excellent interview with links superintendent Craig Gilholm in one of the greenkeeping magazines recently, in which he described 2006 as an experiment in what would happen if he just stopped watering the golf course. So to produce those conditions took a dry spring and burning hot summer, combined with virtually no additional watering. That isn't replicable to order!
The course is browning out nicely - the rough, as has been noted, is thick in places, wispy in others. I would like the greens a tad firmer personally, but that's really about it. Plenty of roll in the fairways - which are no different from any other Open in their width.
As ever with Opens, we just need some wind. After an early morning course walk yesterday, I said to a friend that I expected to see a 65 yesterday, and if Rory had birdied 18 we would have done. The cut line will be low, but on a par 72 course with four par fives that are all good birdie holes, so it should be.