I would suggest that you checkout the "Apprentice Alf" blog site and get acquainted
with calibre here at MR. Then you can purchase your ebooks from whomever you wish.
You can also break any dependency your ebooks may have on servers on the net. The
same for any requirement that your ereader be "Authorized" by any such servers.
It is possible to truly own the ebooks you have paid for.
You can soon get to the position where you don't need to use any application on
your PC, except for a place that the stores associated with them can download
the ebook file. That even goes for the ADE PC program.
Luck;
Ken
Even Adobe "Gets It":
http://www.google.com/url?sa=t&rct=j...VH93k6OnK3YpnA