I'm not so sure this should be allowed. If Qualcomm buys NXP that means they'll own Freescale. That would reduce the number of mobile phone processor manufacturers down to just Qualcomm, ST Micro, Nvidia, Apple, and Samsung. Realistically this means it will be just Qualcomm and Samsung covering almost the entire market of Android devices as the other manufacturer's chips are more niche.

I suppose maybe Marvell could catch up and wind up in more phones but they're already the bargain basement chip that winds up in cheap junk tablets. They'd have a long way to go.

Intel could also make a sudden change of course and enter the market. Their foray into tablets didn't work out well for them (I own several Intel Android tablets) but at least their performance was on par with the competition at the time.