I am personally interested to purchase a Sony Librie from Japan.
Its been hacked, so we can convert our files easily.
and i think i like librie better than reader, for reasons i've already mentioned here:
https://www.mobileread.com/forums/showthread.php?t=6031
also, there are words saying sony will open their BBeB format to public.
If you want to know more, please visit
http://groups.yahoo.com/group/librie/