Cubasis is my favorite way to record on the iPad specially together with a MODX
I have even released and album with that setup. What we really need though that Cubasis lacks is a take folder specially when recording vocals or guitar/sax solos having to do it in different tracks slows down the workflow. We really need a take folder please please please add a take folder on an update. In case you want to listen to a smooth jazz album recorded entirely on Cubasis iOS and MODX here are the links.
Funky Grooves & All That Jazz