MuseScore: open source notation software

I’ve got an old Sibelius CD down in the warehouse, but I couldn’t be ar*ed to find and fetch, and it probably wouldn’t work on Vista anyway. So … I had a look around and installed MuseScore, a free, open source competitor for Finale Notepad (which incidentally now costs $10). David Bolton does a head-to-head here. It’s fine for my basic, barrel organ needs, and I found my way round the interface quickly. The big no, however, is that as far as I can see it doesn’t support MIDI keyboard input on Windows, meaning that writing with it would be way too slow. Other stuff: no undo, problems selecting notes/bars/…, cut/copy don’t appear to work, can’t find way of changing instrument output… One to watch – forums here.