Many of you, like I, have been watching Metrigear progress to Garmin Vector and I guarantee the top two questions have been answered.
When will it be released? March 2012
How much will it cost? $1499
Here is a link to the Garmin Vector Blog
Finally some answers to a product many thought would become vaporware. This puts it in the middle of the range for cost, competing with Quarq, yet nearly doubling the cost of Cycleops PowerTap. I urge you to read the article (also contains some good information about future updates for the Garmin Edge 800, including Intensity Factor, Training Stress Score, and Normalized Power)