In a world where devices are getting smaller and smaller, and hobbyist PC computers are going the way of hobbyist automobiles, the RPi offers a cool choice of open hardware you can really play with. This is a milestone I wish they had hit sooner by trying to solve their supply chain problems.

On a personal note, I don't want a replaceable battery or hackable ROM on my phone. I want that thing locked down tight, and small as possible. I'd rather "hack" a $35 board than a $600 phone.