Cross-platform development - Go with a cross-platform UI toolkit or native on multiple platforms?

Question

I\'m looking for some arguments to pitch to my boss and fellow developers.

We\'re currently finishing up the preliminary UI mockups and getting ready to move on to

Answer 1

Does anyone have any suggestions on how to pitch using native UI toolkits in our next application vs sticking with wxWidgets?

No one likes a corridor-wiseass.

I think action speak louder than words...make a small prototype of how you think it could be done, and show it. Maybe you have to do this in your spare time.

Cocoa is really great so I think that with little code you can show an idea...well, this require that you know Cocoa enough.