I understand where you are coming from, but... I wrote a bit of code on the Symbian platform -- the iPhone is a big step forward. It was much more expensive an

I understand where you are coming from, but... I wrote a bit of code on the Symbian platform -- the iPhone is a big step forward. It was much more expensive and painful to get applications signed on Symbian, especially if you wanted to run on many types of phones. I think the background here is prior to OS X versions of the Mac OS. Lots of apps patched system calls etc -- and it was Hell to make new versions of the O/S (Microsoft was "famous" for breaking all coding guidelines in Word et al and e.g. patching system data structures directly). This was a big contributor to Apple's problems making the next version of the Mac OS. (Excuses in advance for memory errors; this was some time ago.)