SHOWCASE: Well, “public” as in 100,000 users will be getting their invites on September 30. It’s expected to go out to the rest of the world a month later.

Google Wave, an open-source, real-time, personal collaboration and communication tool, was first unveiled at the Google I/O developers conference on May 27, 2009.

Ever since then, it has been described as a game-changer by multiple developers (25,000 of them currently have access to Wave) who have been busy creating and testing their own slew of plug-ins and widgets via APIs (Application Programming Interface) which Google has made available to them.

Basically, Google Wave takes the basis behind emails, instant messaging, community forums, media sharing and social networking, and puts them all within a platform.  (Editor opinions: 1)

To better understand what Wave really is all about, here’s an eighty-odd minute video of that fateful developer conference:

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