I can't see why big corporations love Ethereum, except those of Imogen Heap, Reebok, and USB? I like idea of Etherum, but there is much more to be done. At the moments its just network that is not noob user friendly. Someone who wants to do something with it must learn a lot. All it is good for average user is to send payments , but he can do that with Bitcoin or banks way easier. Big companies can use it for lots of things, but the things they can use it are still unknown even to them and us.