Quote: "It's hard to judge how much there is behind this..."
What do you mean?
Developers, I think it will catch on for anyone wanting to develop for consoles.
This said people who want to play the games, don't need to install the development tools; but subscribe to the service through xbox live. Atleast that's the claim from Microsoft, seems sensible though.
Think about their xbox incubator program, allowed independent developers the chance for 6months to have the XDK and Developer Console. This is basically the same thing but for the xbox 360 generation... at no cost to microsoft now, or providing restricted hardware and software. To me it's quite a clever idea.
Intel Core 2 Duo E6400, 512MB DDR2 667MHz, ATi Radeon X1900 XT 256MB PCI-E, Windows Vista Business / XP Professional SP2