Would iLisp have access to the entire set of functionality in iOS 6?<p>The idea might not fly - I think Apple have a thing against anything that creates apps that don't use the iOS SDK and tools. Perhaps somebody with more knowledge of this matter could elaborate.
You could use phone gap, and compile you lisp to JavaScript with something like <a href="http://common-lisp.net/project/parenscript/" rel="nofollow">http://common-lisp.net/project/parenscript/</a>