Native OS X Development roadmap

I finally got around to grabbing the 1.3 development code. The UI looks 
very well contained in a directory named Gnome. I was wondering whether 
any one had devoted any thought or effort towards a native OS X UI. It 
seems to me there are two approaches: 1) using GTK 
(gtk-quartz.sourceforge.net) as  much as possible or 2) avoiding GTK 
entirely and going with an Objective-C bridge (pyobjc.sourceforge.net).

Although approach #1 would simpler in terms of porting, my read is that 
GTK effort is still in its early stages and it could be quite a while 
before it's functional. Also, you wouldn't get to use the great UI 
development environment (like Interface Builder) that OS X provides. 
And finally I fear the end product won't look completely native: for 
example, QT on the Mac definitely has some glitches.

So I'm leaning towards approach #2, and replacing the "Gnome" folder in 
PyblioUI with "Cocoa". (Easy said!) I'm willing to try to take a hack 
at it, but I might not be best person: although I'm familiar with 
Objective-C, my knowledge of python is close to nil. On the other hand 
looking at the PyObjC documentation it doesn't look completely 
insurmountable.

Advice, comments?

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