Apple to Abandon Akamai?

Akamai is a company which specializes in the transfer of large amounts of data throughout the world. To manage this they have a web of servers replicating data so that they respond quicker to the end user.
Apple, who is one of their shareholders, uses their services with the bulk of their technologies, from software updates to images shown on their website. A rumour suggests that Apple might soon be announing that they will no longer use Akamai's services but instead they will be using Google for similar services.
The rumour could hardly be credible, Google does not offer this type of service, yet:
- On at least one occasion, Apple was obligated to bail out Akamai from near bankruptcy in order to continue using their services.
- With Apple's rising market share and their products multiplying, the number of software updates downloaded for iPods, iPhones, and Macs... now uses considerable bandwidth. It is possible that Akamai is reaching saturation and that Apple does not wish to invest more.
- If Apple starts massively offering video rentals on the iTunes Store, the volume of data transferred will again explode. It will not be good if the downloads are so slow that they hurt sales.
All these points make it so that the rumour can at the end be credible enough to at least merit listening to it.
One question remains: Google does nothing altruistically, What will be the price to pay for using their infrastructure?