Any company that handles privileged customer information that could be used for identity theft and lets employee owned compters onto it's network is eventually going to pay dearly for it.
Gee most M$ users want to be free to do all the power stuff, yet you would bind them down. How Steve of you.
As a rule I would say that employee-owned computers -- OF ANY TYPE -- do not belong on a corporate network. I've maintained that rule on the corporate network I administer and it has worked out well.
The cases where an employee has taken their company-issued (Windows) computer home and let their kids play on it (against the rules) have been awful -- they bring it back in and it's filthy (software-wise) and causes problems.
I think Macs can be just as productive in general, sometimes more so and sometimes less so, than Windows PCs. Depends on what you have to do with the computer. But there's no justification or excuse for letting uncontrolled machines on a corporate network, regardless of operating system.
“Any company that handles privileged customer information that could be used for identity theft and lets employee owned compters onto it’s network is eventually going to pay dearly for it.”
A better approach is:
“Any company that handles privileged customer information that doesn’t properly segregate it at the network level is eventually going to pay dearly for it.”
USB drives are far more ubiquitous than Macs. Also, the vast majority of positions at almost all companies requires no access to such information.