Looks cool! Visor is an indispensable part of my Mac OS X development workflow, but I wonder how this will compare. Doubtful it’s as good; as far as I can tell, it doesn’t give you a view on your recent interaction with the system which seems like it’d be less useful. But for short actions… say, an SVN commit, this could be awesome. Another fantastic thing about this is, it is context sensitive. So if you’re in a certain directory, your shell automatically starts in there. Seems like there’s room for both Visor and DTerm.
*Update: It DOES give you your recent interactions/commands… however, you have to navigate step-by-step through your recent history by clicking little arrows. So definitely less useful if you’re getting into a multistep process where you care about seeing the terminal output easily.
*Update #2: Ok so this is definitely a specific use-case. It doesn’t allow you to change directories. So I guess this is only useful for quick actions that need to be performed as you’re mucking around in the finder. Still seems really useful but jury’s out on whether I’ll use it every day the way I use Visor.