Loopy does more than any other sample recording/looping app I've found for iPhone, but it still isn't allowing me to get my ideas out very well. This is because there are only 6 sample channels and there's no sequencer. I get that 6 is probably the polyphony limit of iOS, but trying to make a whole song out of just 6 samples man, I mean I'm not Fatboy Slim, ok? If I can't construct verses, choruses and so on, how can I make a song? Think about how easy it is to just bang out ideas beatboxing in Ableton Live for instance... I don't need FX and MIDI and all the fancy stuff - just loops that sync with unlimited tracks (even if limited polyphony) so I can listen back to my song ideas and feel out which ones are catchy enough to be worth producing into real tracks.