If leading the hardware market was that easy, there wouldn't be just the players who have been in it a long time.
Perhaps the computer hardware market is in need of an entirely new platform? It's usually how leapfrogging occurs, look at the Amiga and the PS2 for example.
There's a big difference between the circumstances of the two platforms though, the PS2 had Sony's full backing behind it, which means a lot of money.