Facebook today announced in a note to developers that new application engagement metrics will soon become available in the Facebook Developer application. Specifically, the following new metrics will be added:

• Number of active users during the past 7 days
• Number of active users during the past 30 days
• Number of canvas page views
• Number of unique canvas page viewers
• Number of API calls made
• Number of unique users on whose behalf your application made API calls
• Average HTTP request time for canvas pages
• Average FBML render time for canvas pages

Facebook says adding the 7 and 30 day metrics are “important for many applications, as not every good application has its users interacting with them on a daily basis.” These will certainly be helpful metrics for developers who don’t already track this information themselves.

Do you think Facebook should make the 7 and 30 day data publicly available?