content: That's a good point.  Microsoft is making a big play for user data, and where better to get it than straight from the source?  I think their real play is to seep into Android enough so that they can make a power play for the platform if necessary, and owning a popular keyboard can definitely help them there, especially if they start integrating features; however, I don't think people will keep using it as soon as Cortana and Bing start creeping in.  Even the simple change in ownership is going to put a lot of people off.