Specify your own Device?
In some way I welcome BYOD. I don't have to lug two phones around, I can have a laptop that suites what I want to do.
Certainly when it comes to laptops most companies tend to have a one size fits all policy, suited firmly to the lowest common denominator.
Yes your senior exec only needs to run excel, powerpoint, outlook and watch some porn, but us power users do the above, but in addition may be running an X-windows client, visio, a browser with about 10 tabs open, a couple of PDFs and a load of putty windows. So our requirements are 17" screens, a minimum of 4GB memory, 4 core processor and large fast disk.
The lowest common denominator does not work, hence why more and more people are creating Vmware images of their work laptop and running the image on a personal laptop.