There’s a lot of great insight packed into Jakob Nielsen’s Kindle Fire usability analysis, but I especially loved this point about the 7” tablet market’s near-term prospects:
If the platform becomes a raving success and quickly sells in large numbers (say, 50 million copies by end of 2013), then we’ll have an economic foundation to support a rich ecosystem of 7-inch-optimized services. …
On the other hand, if only a few million 7-inch tablets sell over the next year or two, then the platform will either die or be reduced to serving poor people who can’t afford a full-sized tablet. A small audience won’t offer much incentive for providers to publish 7-inch-optimized content and services. The resulting unpleasant user experience will drive any remaining affluent users to buy bigger tablets.
The same can be said for most app platforms as well.