my guitar player has a touch with 4 track recording software that he bought from the apps store and works quite well (he can plug in his guitar with a 3rd party line in cable as well):

http://www.sonomawireworks.com/iphone/fourtrack/

there is also some beat making software that looks very impressive:

http://intua.net/

i was wondering if there is similar software for the n8XX or s60? as i have an n800, n810 and just got a n95-4 (nokia fan?)

i'm very interested in this "studio in your pocket" headspace. i've used recorder to get down some quick ideas.