Now all they need are licensees.
If Apple weren't developing their own GPU's, they might be interested. Sigh..
less than 6 weeks ago:-
Imagination Technologies Group plc (LSE: IMG, "Imagination") announces that Apple has extended its multi-year, multi-use license agreement, which gives Apple access to Imagination's wide range of current and future PowerVR graphics and video IP cores
The details of what the above entails, is clearly where fact ends and supposition begins.