They don't work as advertised - they're terrible. Besides Microsoft, Google has come the closest, but they're not pushing it as convergence. I think it is the

They don't work as advertised - they're terrible. Besides Microsoft, Google has come the closest, but they're not pushing it as convergence. I think it is the future, but it's going to be a difficult one that requires an excellent launch - at least 3 years off before the next major inroads.