Username or EmailPassword
The best RSS reader is NNTP/RSS (http://www.methodize.org/nntprss/)
It runs a local NNTP server (used by newsgroups), so any program that can read NNTP (Outlook Express, Pan, Agent, XNews, SLRN, Opera etc.) can be used.
Since it's made with Java, it's platform independent.
Now I can just syncronize the "newsgroups", and see when OSNews has published a new article :-)