I run OS X on a ThinkPad T420, and this unholy combo is an experience I am honestly enjoying a lot.<p>I like having a 9 cell battery, I like having &gt;1TB of storage, the ThinkPad keyboard and TrackPoint, and I like being able to take the thing apart.<p>At the same time, I also like OS X. I get UNIX underlyings, yet can continue to use software like Photoshop. And there&#x27;s just a big bunch of subjective things that IMO OS X just does better, like scrolling and font rendering.<p>Still, the device is growing older, and I honestly have no idea what to replace it with once the time finally comes. The strange combo I have doesn&#x27;t really have a modern equivalent. Do I sacrifice modularity to stay with OS X? Do I go to Windows or Linux to keep modularity with a modern ThinkPad (which are getting too close to the way modern MacBooks are, sadly).