Spot on there. We have Samsung, Asus, Sony, Blackberry telling us that there successive products are mind-blowing and succeed with huge specification differences. In reality, this isn't the case. It's just poor marketing seeking desparate sales.Get used to it. That is exactly how Apple does it. Introduce a new product and continue to add features and tweaks. OSX is a great example of this. Puma wasn't much different than Cheetah, Jaguar wasn't much different than Puma...and so on. If you compare Lion to Cheetah there are MAJOR differences. The hardware, and other OSes will follow the same philosophy.
For anyone upgrading from the original iPad (ie Me), there's a huge difference. Thinner chassis, better screen, better internal tech. Apple set their price, and put in the best tech without denting their margins in a mass scale. Fortunately, we're able to benefit from a post-HD screen that other rivals can't touch for a long while because they don't have the demands as Apple do now.
As for this rumour? It's a blog reporting another blog as far as I can tell. Claims are normally far-fetched chinese whispers. Just quoting from the japanese website:
"According to reliable Chinese source, LCD supplior of Apple seems to be developing 5-inch Retina Display."
Okay. Maybe Apple are; but it could just be no more than a prototype for any number of X, Y, Z projects.
Surely Apple would make use of the millions of iOS devices out there as remote controls/tv guides etc?