Haven't had too many requests for it, though it's come up a couple times recently. It's like anything else with the project - it'll happen when someone is willing to put money towards it up front. Nothing against you personally but we almost never see "I promise I'll donate if/when X" money actually come in when X is done. EC2 requires custom kernel patches, so would require a complete custom build profile, possibly adjusting some of our patches to fit in with it, setting up a new VM build server to maintain it, would likely need to contract with Colin Percival (the guru of FreeBSD on EC2) for a few hours to help in some areas and verify best practices, and we'd have to pay for EC2 time. It easily would cost us in excess of $3000 USD in labor alone, and I don't see us ever able to get that back on it specifically, so at least for now I can't justify that unless someone funds it up front. There are things that are widely used that are better to put the money we have for general open source development towards.
It's a project I would consider if we at least don't lose too much money on it, don't necessarily have to break even or make anything on it. But it'll have to be close to breaking even. If anyone can justify putting close to $3000 USD into making it happen, please email me and we can discuss. cmb at pfsense dot org
Or maybe if there are enough people with smaller amounts to put towards it, a bounty could work. May want to start a thread on the bounty board.