The big Samsung DLP spot on the web is at AVSforum.com. Go to the rear projection forum and there will be several threads about the new P models. Reviews have generally said the HD3 sets are as good or a little better than the HD2 sets. The HD2+ projection sets havent come out yet and wont be out until August/September. There are going to be other companies making HD2+ DLP sets like Mitsubishi, so you may want to watch out for those. In terms of the HD2+ chips themselves, they are already in several high end projectors and they have gotten very good reviews.
There is a review of the Sharp Z12000U projector which has the HD2+ chip at Secrets of Home Theater & HiFi.
He said it "offers quite remarkable performance, in terms of contrast ratio" and he measured a contrast ratio of 4400:1, which is damn good.
http://www.hometheaterhifi.com/volum...04-part-1.html
There was also a review in Sound & Vision of the same unit in which the reviewer said it set the standard for digital projectors.
Hope that helps.