[nix_said]

Ethereum relies on a defined opscode language, if anything this is the new thing about Ethereum. The return function in Bitcoin is storage, store the opscode in the return function. In Ethereum you store the opscode in a special data field.

The thing the Ethereum client adds is the ability to take the data in the transaction storage (weather it be return or a defined datafield makes no difference) and pass it through an EVM to generate the current state. So there is no reason for that functionality to be limited to just the Ethereum client.

You would take that piece of the client and run the opscode in the return data storage across several transactions.

I thought this was obvious to anyone who understands the discussion on a reasonably technical level. I suspect many posters in this thread are just Ethereum investors with no programming knowledge.