Hi guys, I'm currently working on something called @swap.app. It basically allows you to quickly trade STEEM <-> Hive with market prices.
To use it, simply send STEEM / Hive to @swap.app and you will receive the other tokens on the other chain. No memo needed etc. The exchange ratio depends on current prices and there's a 0.7% fee (including 0.2% fee taken by the exchange).
Two additional options available: - send 0.001 STEEM / Hive to receive message about current exchange ratio - you can specify the recipient on the other chain - just enter @username in the memo
It's currently in beta but the basic functionality is pretty much done. Please try to break it :D Feel free to use scripts to spam it or just use it as normal user and let me know if something goes wrong ;)