I'd tend to agree with you. While this is great for the hacker community, the lack of hardware is crippling. I don't see major manufacturers like Acer, HTC, Samsung picking up on this, especially since Windows Phone 7 is already a credible alternative to Android. Better developer tools, excellent UI and Microsoft's marketing muscle.
The only hope is that if Nokia becomes successful (wildly) with the Win 7 platform and Motorola does the same with Android, then as a product differentiating factor, manufacturers like HTC may pick up WebOS. Now, that's a really long shot.