Why it's so hard to find good Android tablet apps

The first Android tablet was released in 2009, a year before Apple's iPad. And yet, the market for Android-tablet apps still feels like an afterthought.
One reason why is that it's not always easy to tell if apps in the Google Play store are specifically optimized for tablet screens. The "Featured Apps for Tablets" section in Google Play helps, but only 63 apps were featured at the time this post was written — and most of them were games.'Compatible' vs. 'optimized' tablet