I'm really interested in doing loop-based work in environments which aren't likely to have hot & cold running electricity. I really do not want to go the laptop + interface route. The only portable loopers of which I am aware are the DL4 and the Lo Fi Loop Junky. Both of these have significant limitations, especially the latter. (OTOH, I dream of a LFLJ that does SOS.)
Anything I'm missing, or any alternative ideas that folks have explored?