Amazon capitulates in Macmillan e-book disagreement: Higher e-book prices ahead?

It appears the feud is over, with the publisher winning this time. Turns out Amazon’s pulling Macmillan titles was just a token gesture.
Amazon has posted the following announcement to its Kindle Community forum:
Dear Customers:
Macmillan, one of the "big six" publishers, has clearly communicated to us that, regardless of our viewpoint, they are committed to [...]