Recall that "convergence" is the notion that product categories tend to merge, and that "divergence" is the notion that product categories tend to divide into separate categories.
My take on convergence is that technologies tend to converge or combiine, but in a manner that creates new product categories. I have noted the "everywhere phone" as an example we may see in the future. An "everywhere phone" is a phone you can use anywhere there is a connection, whether that connection is over wires, wi-fi, or a cellular network. We're getting closer to seeing such a product now that wi-fi phones are coming out. An important future step will be the ability to seamlessly switch the medium during a phone conversation; e.g. switch from wi-fi to cellular within the same call.