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In March, we launched Mashable’s Google Wave API Challenge, a month-long competition to create exciting new Google Wave extensions.

Today we’re highlighting the best submissions. Below is an embedded wave (it can be seen here too) with 15+ of our approved submissions. We encourage you to explore, rate and discuss extensions within the Waves directly!

Calling All Developers: you can submit a Wave extension until the deadline on April 9th. Winners receive 2 unlocked Nexus Ones, free passes to the Google I/O conference and get their extensions featured on Mashable (details below!).

Check Out the Latest Google Wave Extension Submissions

Contest Details

There will be 3 voting categories: Most Fun, Most Useful and Best Use of the Embed API. We’ll then pick a Judge’s Choice as the overall winner.

The winning developer/development team will receive 2 unlocked Nexus Ones, see their extension featured on Mashable AND receive free passes to the Google I/O conference.

4 Step Submission Process

Step 1: Developers install the “Mashable submitty extension” from the public read-only wave

Step 2: After installing this, you’ll get a “New Mashable Submission” in your new wave menu

Step 3: Just use our “Mashable Submitty” Google Extension and fill out the form.

Step 4: After approving valid entries, we’ll create a public discussion wave with entries including a voting gadget.


Submissions Open: March 8th, 2010

Submissions Close: April 9th, 2010 11:59 PM EST

Public Voting on Top 20 submissions: April 12th, 2010 – April 19th, 2010

Winner Announced: April 21st, 2010


• Developer or Developer Team (Preferred max of 4 names submitted)

• Existing Extensions are eligible only if they use the new API (ports to the new API are fine)

• Full Credit for any work due must be entered in April 9th, 2010

• Over 18 to receive prize

• Final winning submission will be judged exclusively by Mashable and Google Wave team

Tags: contest, Google, Google Wave, google wave api challenge, google wave extensions