Here is a great post from 37signals with an excerpt of an interview with Jack White about the look and feel of the White Stripes and their embracing of creative limitations and simplicity. Jeff Tweedy of Wilco is also quoted in relation to the current battle over DRM and internet radio.
Jeff Tweedy and Jack White on the web, business, creative choices, etc. – (37signals)

Wilco iTunes
White Stripes iTunes