Good question. Personally I am waiting for more stable audio in Leste... out of either the n900 or the nexus 5 I have a keen desire to utilize rakarrack and other real time effects processors... Until then ...it is Fremantle on my n900 running Gnome Tool Kit Guitar Effects Processor (GTKgep is less a mouthful to say) And messing with attempted containerization of effects processors on a nexus 5 with buntu touch