I'm glad this took a turn for civility again. I'm actually not too paranoid about security, given the chance to use my tablet I would in a second. I'm arguing points on both side of the coin, and I'll (much to your dismay/mental health) regularly switch sides. (That's how I explore a topic fully.)
... but in your career paths, you've had to see the other side (which is what I was pointing my finger at). The developer who doesn't need admin rights for any reason but insists on them because it's an affront to his perceived intellect.
The one who wants to use his own machine for no other reason than to set his own standards and play by his own rules regardless of the impact it would have for another department
(say, the one charged with maintaining everything - - IT).
The one who comes up with ideas not because they're helpful but because they're grandiose and are a challenge as opposed to the usual daily code, and subsquently delays the project because rebuilding the wheel didn't work (like it didn't last time and the time before that).
It's been brought up before but in business it comes down to accountability. You might be frickin Linus Torvalds but if IT can't guarantee that your linux tablet is secure, they can't in good conscience allow it on the network.
(And in my specific case, all devs do have widescreen laptops which still kicked the crap out of that rogue machine specs-wise - - the guy was just being difficult and wanted to use the tools for his own on-the-side efforts.)