I'm still swamped at work, but Clark Lindsey has updated his commercial space timeline. I personally continue to find it quite encouraging, though 2005 wasn't nearly as groundbreaking and eventful as 2004 was.

Clark's timeline seems rather aggressive but I'd love to see even half of what he predicts for the next eight years come to pass.

Its hard to say if it is or isn't. The next two years are going to be extremely important since that's the time period when many of us will be flying. Almost everyone has their first major space flight between now and the end of 2007. If that goes as expected then you get a mild network effect: public perception goes way up, that feeds access to investment which accelerates future capability.

As his comparison with the 2005 predictions shows, how it actually works out is always going to be fairly different, but the general rate of progression seems entirely plausible.