It’s an excellent tool for collaborative work among groups... Other than that, though, I am not quite convinced that it’s all that revolutionary or useful.
But then he admits that as more people use it its usefulness may change. His final word on the subject (in this post ;) was "yet". That may well be the key, when/if Wave becomes as ubiquitous as email was in the 90s it may take off as email has, and reach a whole new level of importance. Before that, email was useful, but no one regarded it as vital. Now, imagine life without email!

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