I don't mind app DRM so much, since apps are only useful on the devices that... well, have the store to download it from. For me, DRM opposition is rooted in practicality, not a Stallman-like philosophical stance.
And if we didn't have Alf, it wouldn't be trivial to remove ebook DRM, and it would significantly affect users. So I can't give DRM a free pass because of something it opposes.