I think what killed it was that it didn't run Windows 7 or Windows Phone 7. Which is really too bad, because the former was obviously inappropriate for it, and

I think what killed it was that it didn't run Windows 7 or Windows Phone 7. Which is really too bad, because the former was obviously inappropriate for it, and the latter was subtly inappropriate. WP7's UI looks really promising as a phone interface, but the courier wasn't about any of the tasks that phones do. It was about one thing only, and that was information collection for creatives. I don't think I'd have liked a courier that booted up to something that I had to "launch the Courier app" from as much as I would one that simply became Courier every time I woke it up.