It would be nice if the list of channels on the left
hand side of the UI was implemented in a tree view.
This would allow better organisation of channels, so
that feeds of certain styles/types could be grouped,
and multiple feeds from the same site could be kept
For example, Slashdot and other news sites have several
feeds for differents news summaries, and also for a
site like sourceforge, feeds from several projects
could be kept together under a sourceforge node or even
sub grouped within that if lots were subscribed to.
A final benifactor would be that less scrolling would
be needed in that side pane, as the collapsed tree is
less likely to fill up the pane, and it will be easier
to find the feed you want without having a crowded UI.