Of course, none of Python, Perl, or Ruby are "interpreted" languages. I'm not sure I see any distinction between a compiler (or interpreter) and any other program. Programs read data, and produce a result. Compilers read data (source files) and produce a result (the program described by the source code). HTML in Safari is conceptually the same as a python compiler.

Anyway, who cares about Apple's proprietary platform? Yeah, the iPhone is cool, but if you value freedom over looks you should try OpenMoko instead. I have one of the Neos and it is pretty nice. (Not a lot of app development going on in dynamic languages, unfortunately; most everything is plain C. Yuck.)