Following the sneak preview of Gmail contextual gadgets during the launch of the Google Apps Marketplace, we announced a limited trusted tester period for those who couldn’t wait to get started. We were pleased with the overwhelming interest in the API, and were able to invite a select group of developers to participate.

We are happy to announce that the Gmail contextual gadgets API is available to all Google Apps Marketplace developers today. For more on how to get started, check out the documentation and read the full announcement on the Google Enterprise Blog.

For anyone interested in a deep-dive on Gmail contextual gadgets, make sure to check out my session at Google I/O!