Short answer, yes.

Long answer, yes, but I imagine it would be more a case of clever trickery than a true 'program browser' - you'd have the browser bar at the top of the screen say, with all the icons on it for the programs you want. When you start the browser, it opens all the programs and minimises them, but doesn't show them on the taskbar, rather you'd access them by clicking their icon, giving the impression that the browser bar is opening them as a group. 'Twould be a fantastic system hog.

You might be able to open the program in it's own frame, thus allowing you to have a fullscreen window made up of layered frames which are accessed by clicking their tab, but I don't know enough about how those things work to be able to say for sure.