Try complaining to the publishers as well... if they can't be bothered to do a proper job to produce a typographically pleasing product then the fault is hardly all Sony's... I agree that font choices would be nice (or ability to easily add your own) but the actual content provision doesn't come from Sony, they are just selling what the publisher provides. Some produce excellent books (or their authors insist on it) but a lot think that just providing it in eFormat is all that's required.
Equally this is still a very immature market with lots of people feeling their way to what makes an acceptable product... just wish they'd speed the process up or consult people who actually know something, you know, typesetters... oh yes, how about readers as well...
