The worst offender is actually Amazon. I just bought a Kindle Fire HD and boy am I disappointed! The only apps it runs are from Amazon App Store... but only the local one in your country. I can't access the US Amazon App store from France!!
And of course one can't transfer Kindle books from one account to another.
The answer is jailbreaking and de-DRMising; it's a pain of course but it's very much worth it.
I've recently bought for the first time an DRM protected ebook, from Kobo. Never again will I make this mistake, it's just ridiculous that I can't download a simple PDF file and read it on any device I want using any software I want, without having to install a stupid, bloated app.
No, I don't want to notify people on FB or Twitter about books I'm reading. No, I don't want to see achievements. No, I don't need personal stats. No, I don't want to join a club. I just want to read the damn book I just bought!
And of course one can't transfer Kindle books from one account to another.
The answer is jailbreaking and de-DRMising; it's a pain of course but it's very much worth it.