Can I get the Amazon SWF usage limits for my account from the API?

According to Amazon Simple Workflow Service Limits:

Limits on Workflow Executions

• Maximum open workflow executions: 100,000 per domain

However, the Amazon SWF Limit Increase Form states:

Amazon SWF users can create a maximum of 100 domains per account. [...] Upto 10,000 workflow executions can be open at a time in each domain, which means that upto a million executions can be open simultaneously in each user account.

Either way, Amazon can change the limit for customers who've requested it.

Is there a way of getting these figures from the API for my account, for a definitive answer?

Can I see them somewhere in the interface?