There's been a lot of discussion surrounding why Apple would release an iPad mini, but maybe even more concerning how Apple would go about implementing it. iMore originally heard back in May that the so-called iPad mini would be almost identical to the current 9.7-inch iPad, simply shrunk down to a 7.x-inch form factor. (I'm using 7.x-inch in lieu of a specific size since we haven't heard a specific size yet, but AppAdvice's A.T Faust III made a great case for 7.85 inches, so feel free to substitute that in.)
Some people, designers and end-users alike, feel the iPad interface won't scale down elegantly -- that touch targets will be too small and interface elements will feel too cramped. I've had the same concerns.
With that in mind, it's worthwhile considering the different 7.x-inch options Apple might choose to implement, and the benefits and compromises inherent with each.