As Apple has unveiled its long-awaited ipad mini, we can see where it fits within the broader small-tablet market based on facts, not rumors. There are a slew of Android-based tablets with screens in the 7-inch range. Amazon ,Barnes&Noble ,  Google , Samsung , each have a tablet that size.

How does the iPad mini compare with them? While Apple's new 7-inch tablet entry will likely find buyers because of the iPad name and the strength of the iOS app ecosystem, the iPad mini's specs and pr...