Tom,
I went to Diamante Dunes exactly one year ago and played Tiger's course El Cardonal. With all due respect to Paul Cowley as I think he did a great job building/supervising the build of it I didn't love the course and I doubt Tiger had much to do with it. Kind of breaking the champagne bottle. It was actually similar to what David said above about Bluejack which I didn't run to see yet. It is very very wide open and ONLY 7300 yds from the back tees. The scale of the course is very big but there weren't many holes that really hit me as special, more of a general resort golf feel to it.
I guess it may be a while before he catches up with Jack on the architecture front so you few modern front runners in the architecture arena don't have to worry too much about his natural talent in this field just yet. However, his name could very well sell housing.
In fact, I will share one true story about my experience there. In the clubhouse after one of my rounds at Diamante Dunes I talked to a couple guys that were playing behind us who seemed like solid golfers. They were of the macho New Jersey/New York Italian acenstry, shaved head, gold chain wearing brash sort, though solid golfers nonetheless and timeshare owners at Diamante, I asked them which course they like the best and why. They all immediately replied Tiger's course. Then one of the guys went into this long diatribe about how long he was (off the tee, but he could of been talking about many other things with the amount of pride with which he spoke). He said he only liked courses above 7200 yds and that Tiger's course offered up the challenge that he needed to let the big dawg hunt and spend the day chasing the long ball. At that point, nearly every single poster and lurker on this site past through my mind in the splinter of a second and I tried to figure out how to respond to this very serious statement. So for the first time (probably in my entire life) I tried to be cool, I nodded with an affirmation much as Harold Ramis did in Stripes (the movie) when he told a young Judge Reinhold about the strip search on this Army recruitment bus. I said, "Right on man! That is so fitting that Tiger is building courses for great players like you!" I gave him the rock on fist bump, I learned that from Bill Schultz, then I quickly exited stage left.