This has probably been discussed before, but is the vision for Ethereum that the network is to operate on its own, or do some intend some Ethereum DApps to be able to integrate with other blockchains, i.e., Bitcoin. I look at Ethereum as the advanced decentralized platform with Ether being like the fuel to run the DApps. But is it practical to still use the Bitcoin blockchain for payments, i.e., using Bitcoin as a currency, vs. ether as a fuel/commodity? Does it make sense/is it possible to create practical Dapplications while still integrating Bitcoin payments within Ethereum? Or is this blasphemy I talk about? Any examples and resources for Ethereum DApps that work with Bitcoin blockchain- please post them here. Thanks!