Yah i don't really know what your talking about scape, I don't have an iphone to test. I have an HTC Touch with Windows Mobile and the site fits fullscreen on it.
I used this site
http://iphonetester.com/ to test and it seems full screen on this, don't need to do any zooming. But i don't know if thats actualy how it looks on an iphone. I made the mobile sites max-width 480 pixels, which is the width of the iphone screen sideways.
The main advantage of the mobile site is the page sizes though. They are much smaller and will load much faster on mobile internet.
I was thinking about changing the forum index page, it is very long having all the forums. Maybe I could ditch the forum descriptions and just have a plain list.