https://bitcointalk.org/index.php?topic=822100.0
Quoted from above link (OP by BCT user CIYAM):
"Many may not be aware of Automated Transactions or AT (http://ciyam.org/at) but it is a "Turing complete" VM for transactions that can have "state" and perform "other transactions in a trustless and deterministic manner".
It was developed by myself in C++ and at least one Java version of it will be launched this week in a "testnet".
What it does is basically the same as Ethereum except that AT has been designed to be added to any blockchain system.
This means that the idea of "atomic cross-chain transfers" (that people may have heard about) would not only be possible between Bitcoin/Litecoin clones but any blockchain.
AT is open source (MIT License) and has been very thoroughly tested (every op code has unit tests - around 6 months of work by three people was put into doing this)."