Some full size screenshots would be good to have on the Tour page rather than the current lengthy text descriptions. After skimming through the whole tour, I still don't have a sense of whether or not your app is better than Basecamp.
I completely agree with this, that's the first thing I thought. I immediately search for a sample site or demo account that's a lot quicker for me than reading all that text. Or if not a demo at least a concise screencast.
Of course it's better! :D Kidding. Yeah, actually, we launched the marketing site almost a month ago to build buzz before the launch, and since parts of the application weren't finished, the screenshots are outdated. I need to take the shots again and sprinkle them around the site.