Smart contract platform with masternodes

[kurret]

I would like to know if the following blockchain project has already been implemented. Imagine a smart contract platform like Ethereum, but which also has masternodes. These masternodes can of course be used to do things like instantSend and PrivateSend, but they would also be available to all smart contract developers. Namely when coding a smart contract, one should be able to write commands that will be run by the masternodes.

This could allow people to for example develop ERC20-like tokens but which implement instantSend, games that are interacting with a blockchain can get instant confirmation on all their interactions with the blockchain to not to slow down the gameplay too much. As I understand it, currently dApps need to be connected to a server to relay communications to the blockchain (or run their own node which is slow and memory consuming): this could now also be run completely by masternodes.

So my question is if this already exists? Is it a good or bad idea? why/why not?

[shade_tom]

It's a pretty good idea. I would also add that MasterNodes should also be able to act as HTTP oracles. That way querying a website for some realtime information would be possible.