Companies are using their testing and development (TestDev) infrastructures more and more as a proving ground for implementing shared infrastructure and private cloud environments, according to our recent survey of senior IT managers at North American firms. Conducted in mid-to-late 2009 on behalf of Platform Computing, Inc., the survey revealed that the top challenge of running TestDev environments is the need to manage virtual and physical resources separately, with most respondents also indicating that virtualization on its own does not address their most important TestDev infrastructure challenges.