Yeah, iPods, iTunes, iPhone and iPad are so new... because nobody ever heard of a walkman, online music store, mobile phone or tablet before. Nor is Apple all that succesfull, yes, they sell a LOT of a single model but in total sales, many others surpass them. (Android activations outstrip in a matter of days, total iPhone sales. iTunes sells a lot of online music but only if you don't count traditional retailers)
Nobody is saying they invented portable music players, mobile phones or online music stores. The point is that the online music market and harddisk portable music player markets were almost non-existant before Apple came in there and shook things up. They made harddisk players appealing and tied them to an online music store. I call that making a market and they did it so effectively that they pretty much have the market cornered and have easily seen off attempts by Microsoft and Sony.
The iPhone was obviously not the first mobile but it did revolutionize the market. Its combination of a user friendly interface through the touch screen, onscreen keyboard and well thought out applications ui, with the ability to expand functionality through easily purchasable native applications was novel and innovative. It set the standard that others have rushed to emulate.
The parent poster claims he can't remember seeing rows of tablets before. Well, then he must not have been looking. Archos has been in the market for a long time. Of course, you could further specify that a tablet only counts if it is 8.9 inches and a certain thickness and color but most reasonable people know that tech gadgets evolve. Tablets were once laptops, then thin laptops, then those hybrid laptops whose keyboard could be hidden with a touch screen. In fact, weren't THOSE devices once called tablets?
Actually I made specific mention of old style tablets. I'm sorry you couldn't read to the end of my post. Those devices are nothing like the iPad or other modern tablets. As you yourself say they were laptops with touchscreens stuck on, which is really nothing at all like the iPad. The iPad is in a different class of portability and is designed from the ground up around its touch screen. It also functions much more as a portable entertainment hub. It also does that at a price point that undercuts even most normal laptops. I can't remember anything much like the iPad before it came out. Those touchscreen laptops even if they share the designation of "tablet" certainly aren't the same thing. The iPad made that market. Now everyone, even Amazon, is rushing to get their share of it.