> At least iTunes eventually removed DRM

Job's anti-DRM letter was published 8 months before the public beta of Amazon MP3 in September 2007. The first DRM free music from EMI was available on iTunes in May 2007. Google Play Music opened in 2011, two years after iTunes music was fully DRM free in the US.

"Eventually" is a bit harsh, it isn't a given that Amazon MP3 and Google Play Music would be DRM free if it wasn't for Apple pushing for it back at the start of 2007.