iPhone SDK Question

FROM : Development
DATE : Sun May 04 15:52:56 2008

Well I'm not willing to switch to AT&T for my cell, but I would like 
to develop for iPod and iPhone. I've been messing with the SDK and it 
seems fairly straight forward, however.... I am in love with my PPC 
and unwilling to give it up until Apple stops making OSes for it. 
Therefore I am using the SDK on my G5. It took a little tweeking, and 
googling to get the thing to compile but it all runs now. So my 
question is: If a compiled iPhone/iPod app runs on the simulator on my 
PPC will it actually run on the iPhone/iPod? I checked the apps and 
they say they are PPC even though the arch variable says its the right 
one. So I'm a bit confuzzled about this as it seems it should at the 
very least say universal according to the apps in the sdk.
P.S. Before asking this I looked for a iPhone dev list but there 
doesn't seem to be one or I didn't see it.