I'm happy that my job never forced me into owning an IP, BB, androids or whatever they call them today. Such a device comes with the expectation that you are available to your employer/ customer 24/ 7 so even if you don't pay for it it still takes away some of your freedom.
I do tech support and I'm glad my emplover doesn't make me carry one. It's an electronic ball and chain. I love my job, but I don't want to mix the two.