I mean, the Macs were good, the ipods ok, the ipads ok (though I can get cheaper and better functional stuff from other vendors, I acknowledge Apple's making everything easier), but nothing can give the satisfaction with a good JCL that actually works or being able to actually use vi without tearing your hair off!
Tablets are toys. My company gave me a Xoom as a safety award, it is now listed on Craigslist as I do not play Angry Birds nor do I read E-Books so the thing was useless to me.
Instead I decided to buy an HP TM2T where I would have the portability of a touch tablet, but the power and capabilities of a real computer.
What, exactly, is closed about a certified UNIX system that will run 100% of your Windows software as well as all of its own OSX software, and 100% of Linux software as well, not to mention a host software from dozens of other operating systems... simultaneously? Perhaps the thing that is closed is your mind?