I think part of it is that for NPR, "smartphone" resonates with a larger audience, while Ars Technica or Slashdot might be more specific with "Android phone" or even "Nexus One".

Also, its a Linux phone as well, standing on the shoulders of all of the years of work poured into making an awesome kernel to build operating systems like Android off of. And the rocket used to launch the satellites. And microsatellite launch programs (like cubesat).

At the end of the day sometimes to get people interested in an article, you just need to find a simple human way to connect to their life--or in this case, their pocket.