There is an opinion by an expert that the other manufacturers will never be competitive with the iPad. Apple has too much in-house control of the process. It keeps everything coordinated and focused. The other manufacturers depend on outside vendors for the software, product designs, and accessories. For example, Apple used the ARM processor, which they own. The others buy the ARM, Intel, or other processors. Apple gets the best, first and without markup. Apple owns the iOS, which means they control what features, when they come out, and can make the OS work more efficiently with their processor. The others have to wait for MS and Google to make changes to a generic OS, and then modify which features they are using. His argument has merit. It doesn't mean that others won't match the iPad's pricing, but that for the same money, you get a lesser product. So those who are into Android may have to pay more for the privilege.
That is an interesting analysis, but one could argue that almost the exact same scenario (minus ownership of all of the components) has already been tried with Apple's line of computers with only marginal success. Apple has complete control over the hardware, OS and software on the Mac platform and they are pretty much a bit player in that industry. With portable devices, and tablets in particular, the difference is that Apple has been first to market with a viable product. It will be interesting to see if anything can slow that momentum. I think it will be hard personally, but in the end Apple might end up being their own worst enemy.