From my perspective, technically, Google Wave qualifies with the words you’ve written, but I don’t think it’s in the spirit of what you’ve written. (“Cheap” makes me think you’re looking for physical-world inventions, which is probably worth being more explicit about.)
If I’m wrong and it does qualify, there’s a number of web app examples.
From my perspective, technically, Google Wave qualifies with the words you’ve written, but I don’t think it’s in the spirit of what you’ve written. (“Cheap” makes me think you’re looking for physical-world inventions, which is probably worth being more explicit about.)
If I’m wrong and it does qualify, there’s a number of web app examples.