This gameplayer article asks the question: what are the 10 peices of technology for which this generation will best be remembered? It lists the 10 and offers detailed explanations as to why each will be highly influential.
"We pretty much take Rag-doll physics for granted these days. So what's next? What's going to define the current and next generation of games as must drool over technologies? We take a look at some of the obvious (and not so obvious) contenders."