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Google Wave Introduced at Google I/O 2009

Google · Demo · 1 h 20 min · 2009 · YouTube title: Google Wave Developer Preview at Google I/O 2009
Why it's here

HN returns to it as the original Wave pitch, both for its wow factor and as a case study in a hyped product that was later shut down.

What it covers

The Google I/O 2009 keynote introducing Google Wave, a real-time collaborative communication and document platform. It includes a long live demo and the developer preview announcement.