because I purchased an eBook on the basis that I would be able to read it, and now Adobe can come along and unilaterally reduce the value of my investment by forcing me to use software that no longer allows me to read my eBook comfortably
just like 8,
flv to video which will not allow you to read DEs. So I got my old PowerBook with 7 and tried to authorize it to read the DE I just downloaded and Adobe won't let me open it. It seems that DEs are not backward compatible after authorizing them for Acrobat 8 and DE. In short, this is a mess.