"We're sorry, but your promotional code was invalid."
no joy for me.
Edit: works for ebooks only for me, not for printed versions. I'm outside the US, so that may be a factor?
no joy for me.
Edit: works for ebooks only for me, not for printed versions. I'm outside the US, so that may be a factor?
edit: it explicitely says it's only for e-books and videos.
Via: https://twitter.com/#!/stuccharlton/status/9185592818536448
Not sure about the US-only bit, though.