It just takes the killer device....Apple have it all now, but they don't employ every single clever design technician in the world.
That is certainly true. And there are tens of thousands of skilled engineers and software developers working at various Apple competitors.
But I see at least two factors working against the Apple competitors:
First: They are all playing
catchup. By simply trying to match the iPad competitors are allowing Apple to maintain the inittiative.
This has several ramifications. To start with, it allows Apple to strategically plan which components it needs to lock up supplies on, e.g. Touchscreen display panels; batteries; memory. If Motorola goes shopping for these things a year after Apple has, they are going to pay higher prices, from lesser suppliers, with more uncertain results.
It also allows Apple to set the standard by which other tablets are compared. Competitors may be able to differentiate themselves by adding features, but this has the effect of further fragmenting the platform.
Secondly, I believe Apple has created - over a period of literally decades - a culture that values excellence in every aspect of the device, from the box the product comes packed in, to the industrial design of the product, to the software it runs, and the "ecosystem" it works in. No single engineer or product planner, no matter how talented or visionary, can possibly re-create anything like this.
Hewlett-Packard's "throwing in the towel" is a tacit aknowledgement of how far behind the rest of the industry is. To be fair, HP is suffering as a result of the relentless "cost-cutting" regime of the previous CEO. But the fact that such a well-managed company, with a storied history in Silicon Valley, an excellent reputation and brand name among consumers, and the employer of some of the best brains in the industry has quit really is the "writing on the wall" for serious iPad competition.
I'm quite sure Samsung, Asus, and Motorola (now) will continue to provide Tablet devices. But they'll end up being bought by the marginalia: Rabid Apple-Haters; Techno Geeks; and bargain-bin trolling cheapskates. But for the computer-buying public, there will be one name to consider, and one name only: the Apple iPad.