Gartner Inc. analysts Monday warned that the tech industry is caught in a "vortex of insatiable mergers and acquisitions" that is creating a category of "super vendors" selling highly integrated offerings.Peter Sondergaard, senior vice president of research, offered an audience at Gartner's annual Symposium ITxpo here a particularly blunt critique of the accelerating trend by tech firms to acquire innovation though mergers and acquisitions ."Acquiring innovation is one thing, maintaining it is completely different," said Sondergaard. Integration across an entire stack by one IT provider "is impossible to maintain long term - users will not accept architectural mediocrity," he added.