Horizon Synth - iPad only I think £2.99, based on JP8000. Only spent a couple of short sessions with it so far but seems very nice, easy to use though ARP takes a bit of thinking about. A manual would be useful in this regard but there doesn't seem to be one.
No-one mention garageband? Pretty neat as a sketch pad for 2.99
Request - anyone using any of the song chord charts / set list programs? Seen a couple that look interesting, one from Yamaha one from music room, but not sure if either do everything I want:
1. Loads of accurate chord charts for well know songs, transpose function.
2. Ability to write set lists