i would encourage it. Nanostudio rules
i've been using it for like 4 years now. originally on an iphone 2G(original) and then now on my iphone 4.
it's fucking amazing.
some new song i made the other day with nanoloop for iphone AND nanostudio.
https://soundcloud.com/koolskull/deep-sea-kappa-skull
also, you can send .NSP files to friends for collaboration. if u all wanted to collab with me on traks i would love it. send me ur emails so i can send u tracks while im making them. u ca remix shit and we can collab on sum fun iOS stuff together!