Gnustep + mac + windows? Possible?

[Eric Dahlman]

Howdy,

I am starting on a new project which needs to have a cross platform GUI 
and I was wondering how practical that would be using GNUstep and 
Cocoa.  Specifically...

How hard would it be to port a Cocoa application to GNUStep?
How hard is the other direction?

I should support Unix, Macs and Windows is the latter useable?  Do I 
need to install an X server?  Would it be possible to have a click and 
drool kind of windows installation?

If I can keep the core functionality the same I have no qualms about 
having varying levels of functionality on the different platforms.  I 
intend to do the dog and pony stuff on the Mac so that will have to be 
tight and I would like to have the Unix version be as close as possible 
but I understand Windows is kind of behind and I can live with that, if 
it at least mostly works...

Finally, this project is in most preliminary of planning stages so 
could you also give me any advice for what types of gotchas we need to 
look out for if we go down this road.  I am at liberty to design into 
the system whatever I need to make this a painless as possible.

Thanks for all your help!

-Eric