I’ve heard from several different companies that have purchased Surface Pro’s by the stack for deployment throughout their organization. I’m sure Microsoft is aware of these cases, too, seeing that they just released a firmware and driver pack to help with Enterprise deployments.
From the description:
Cumulative firmware and drivers for the Surface Pro, including all current drivers as of April 2013 update cycle This firmware and driver package contains drivers for all of the components in the Surface Pro device, as well as updates to the system firmware that have been released via Windows Update; from product launch through April 2013. These drivers and firmware are not compatible with Surface RT.