Great stuff, but a bit late
All good stuff and I'd love to see these spaceplane technologies in action, however I can't help but think that all this should have been happening about ten years ago.
As of 2010, it appears that the ISS is going to last until around 2020. If that's the case then we're already past the halfway point of the ISS program chronologically speaking (which started in 1998).
By the time these technologies have been further developed, refined, flight tested and the inevitable delays and setbacks have pushed the schedule back, it seems optimistic to assume that that this technology will actually be able to deliver before the ISS is de-orbited.
I sincerely hope I'm wrong, but the ISS needs something up and running like this now, not a decade from now.
The Russians have their good old Soyuz and Progress craft up and running now. Doesn't matter that they are based on old technology. What matters is that they are up and running now. This is so important, given the impending retirement of the shuttle fleet.
But if only someone had the foresight to start kick-start these spaceplane projects back in 2000, then they may have been far more useful for the ISS program.