Does Facebook have a maximum number of API connections?

Question

If the answer is yes, then what is it?

By maximum number of connectioned allowed per application I mean how many instances of the same api/key can be used to get the friends list at any one time, will Facebook block too many requests?

EDIT I have been looking at http://developers.facebook.com/ but have not been able to find the answer to my question there.

Answer 1

From their Policy

If you exceed, or plan to exceed, any of the following thresholds please contact us as you may be subject to additional terms: (>5M MAU) or (>100M API calls per day) or (>50M impressions per day).