This is nice.
I’m still in love with TextMate (especially since I’ve been doing lots of editing property lists of late – yuk).
I’ve always liked the way that if you select multiple files and then cmd-click | open with… and select Textmate then it “knows” to open them all and create a working project for them.
This handy little button (which looks rather nice in the finder – a touch of colour) reduces that to one click.
It’s small, fast and effective. One could ask for no more.