I wouldn't go as far as saying that the i7 only yields a 0.05% performance increase over other platforms. Gaming is not it's strongest point but wherever it's architecture along with it's Hyperthreading can be utilised it really comes into it's own.
Phenom II's got plenty of coverage since January if you look in the right places. The main problem lies with a lot of users who have been so blinded by Intel being the top performer for nearly two and a half years that they didn't even notice that Phenom II was starting to bring home some wins!
About a year ago, I wrote an AMD vs Intel article with equivalent CPU's at different clockspeeds. I intend to do another this summer with a wider range of CPU's including Phenom II. My own experience with AM2+ is that it's a very capable platform that actually has a future unlike LGA775. If you're an overclocking enthusiast, it really is the answer to your prayers as the tweaking options are much wider and the performance increases as a result are very rewarding. It was a breath of fresh air moving away from the dull days of whacking up the FSB till it can't take anymore.