Hi Andrea, You aren't the only refugee from ion3 here. There's me and at least one more (whose name escapes me). But almost all of us have no X experience. I've been hacking xmonad a bit, but really shouldn't be. This morning I was seeing about starting in on a tabbed layout. The trouble I'm running into is that xmonad currently has no code that involves drawing to the screen, so there's no examples to modify! The other trouble is that it seems like we'd need quite a bit of infrastructure to support drawing on the screen. At a minimum I think we'd need a layout to be able to create "tab" windows and clean them up later, which will mean that the layout needs to be notified when you switch layouts so it can delete the tabs, or at least hide them. And some way to define redraw functions would be needed as well. :( The core xmonad developers (which doesn't include me) aren't (so far as I can tell) ion3 refugees, and don't have the same desired features. But they do seem quite friendly to the idea of making xmonad extensible, and for anything that can be done in XMonadContrib, we seem to be totally open. I'm also keen on hs-plugins support. In principle, it's not considered objectionable, so far as I can tell, but dons thinks hs-plugins is too heavyweight for xmonad (paraphrasing from memory). I'd say that xmonad source is pretty darn easy to modify, and small enough that it doesn't require haddock. But I also doubt haddock patches would be rejected. David