I assume we're talking about Cut in Finder, because it works elsewhere. This has been one of my OSX bugbears for ages now, but I always assumed there was a technical/ideological reason for disallowing Cut/Paste of a file. Now you're telling me I can do it, I just need to learn another shortcut, and remember that it only applies in this situation?! What on earth could possibly be the rationale behind that?
Keyboard support in OSX is truly appalling. Window management with the keyboard is also a pain, and even tabbing through controls - even with the stupidly-off-by-default setting - sometimes fails. The reason this annoys me so much is that OSX on Mac hardware is almost a dream setup apart from these flaws, but these flaws are significant enough that, after 4 happy years, I'm actually considering switching back to Windows.
