There's already been quite a bit of ink spilled over the demise of the CrunchPad but I thought I'd add a few drops. My opinion is this: the CrunchPad was a testament to the power of online media and a fascinating study in the ability of new media to enact real changes on the real world. While the product faltered, it's fascinating that the project went as far as it did given the forces arrayed against it.
Think about what happened: if we reduce this to its component parts you have some dudes in California who talked to some dudes in Singapore and who agreed to work together on a piece of hardware. I've seen the prototypes and the thing worked and worked well. Most hardware manufacturers can barely take each others meetings let alone coordinate a massive project while separated by a culture and an ocean.