Mincer
Inspired
I'd love the looper to have some sort of feedback parameter, like a long delay. You can vary it as you play. This would work in overdub or not, and would affect anything that was recorded. You can have new stuff added to the loop as old stuff fades away, or fade loops away while playing live non-looped stuff over top. This isn't the same as using a long delay, as you get to specify the loop length as you record, not when programming it.