Looks like very intriguing and very different concept which allows to create smart contract on multiple platforms .Also including airdrop is good.will take a look at it.
Not certainly in that way. The platform is one, but blockchains are 3: Ethereum, Bitcoin and NEO.
Yes, for the meantime, smart contracts can be created on any of the three blockchains but do not interact between multiple. However, perhaps in the future MyWish could team up with a "messenger"" or cross-blockchain oracle project such as Nebulas to enable, say, a crowdsale contract that enabled BTC and ETH contributions. I do not think this would be an improbable goal sometime down the road. Perhaps for sometime next year.