Check out Tiny Tiny RSS. It's an RSS server program you run on your own machine. Like Google Reader but under your control.

I use Unity with a dual-screen setup and I think it works pretty well.

The panel (the bar at the top) spans across all monitors. The indicators in the top-right appear on EVERY monitor, which is kinda cool. The growl-like notifications only appear on the right-most screen, I wish they'd appear on all screens too.

The launcher only appears on one screen, the left-most one by default.

Finally the app menu can be reached from any screen (even if the focused window isn't in that screen), so if you have one window per screen it works well. It's with many-windows-in-one-screen where the global menu causes problems.

Oh the irony...