Is it possible to use an EC2 RDS MySQL instance as a slave to an external master?

I have a master MySQL instance running on our local network, but I was wondering if I can get an EC2 RDS instance to replicate the master or is this locked down by amazon?

From serverfault Jalfy

• Unfortunately not currently supported by Amazon. Hopefully in the future as I am awaiting that ability too.

  From KayakJim