Maybe I'm just missing something, but iPhone is running an embedded version of OS X which has a full blown development environment and has Dashboard widgets for even simpler applications. What else do you want? Full hand holding?

If you are interested in anonymized safe browsing, check out the Fearless Browser. It is a totally secure browsing environment that runs inside a stripped down Gentoo virtual machine. It includes Firefox 2.0, Tor for anonymous browsing, OpenDNS for phishing protection and fast DNS lookups, encrypted IM with GAIM, and MPlayer with video plugin for all your "favorite" sites. It has become my browser of choice. I carry it on a USB stick and can use it anywhere.