This stunning array of Animoog presets from ZenLizard (yes - he's done it again!) explores the possibilities of the built in timbres and various others available through IAPs. Resonant basses & cutting leads take full advantage of the highly playable keyboard and sound fantastic. Completely free for everyone!
Edit: When I posted this bank I hadn't spent much time with Zen's sounds, after doing the demo, see below, I am absolutely blown away, one of the most enjoyable musical experiences i've ever had I think. For Zen to give these away for free is very generous indeed!
Stunning - simply stunning!!!
Second edit: I know I've said stunning 3 times now, ok 4!, but they are...
To get these presets into your iPad you will need to connect your iPad to your computer and either use iTunes or another iPad file management app. SynthPatcher heartily recommends iExplorer from MacroPlant for simplicity and safety.