I've been using smartphones for years and I typed this post on a Nexus 7 and I don't want a touchscreen integrated into a traditional controller. As much as some people love it I do not want to divide my attention between the controller and TV while gaming. It's a step backwards in immersion in my eyes. Controllers should be as unobtrusive as possible.I guess you don't use a smart phone then.
Get used to it because I'll bet my house that at least one of Sony or Microsoft jam a screen in their next controller. They won't want to miss the boat again.