Linux usability -- an introspection (Code name :: linusability)

In spite of all claims and evidence regarding the superiority of
Linux, one aspect of Linux remains to be its major weakness --
usability. This may be the reason for its slow acceptance by the
not-so-geeky user community. I am launching a serious study into
various aspects of the usability aspects of Linux, so as to list
out the problems and hopefully help some people offer solutions.

I need help. Please, if you have any ideas on this subject, or if
you know any sources where I can get directions, or if there is
something I should (or should not) do, let me know directly, by
email. I will compile all my findings, and post them back in this
forum. Let us make Linux more enjoyable by more people.

Many thanks,

partha AT gmail DOT com