I was starting to think all planets outside our solar system were gas giants. This one was probably found because it was hot enouh to show up on the infrared spectrum.
They had to find a solid extrasolar planet sooner or later, the possibilities for it were too big. Too bad this one is too hot to contain life. But again, the odds that a cooler one exists somewhere, are likely, especially now that we found Corot. It is an exciting discovery.
I agree that we should have found a rocky planet outside our solar system sooner or later. The odds are so overwhelming. I think they need to search a little farther from stars so they don’t find more of these “hot rocks”.