From the PlanetXbox360.com feature editorial:
"As the Xbox 360 gets further along into its lifespan as a gaming console, many in the gaming industry and community at large begin to question when exactly a replacement will be on the horizon. However, in the years since it was released, Microsoft has notably proven that the console is capable of evolving, being adapted to the needs and wants of gamers as well as developers. For instance, Project Natal will allow the Xbox 360 to compete in the realm of motion controlled titles. This, on top of already consistently strong content offered by Microsoft, continues to perpetuate gamers to purchase 360 titles as well as utilize the hell out of everything Xbox Live has to offer. But, as the 360 continues to be produced, it receives strong utilization as a gaming platform and media center, if for no other reason than people keep buying them in staggering numbers. Thus, it draws on the question of whether or not the system is actually future-proof until such time as Microsoft, in their infinite corporate wisdom, decides to replace the console with a significant technological jump."