I am curious about the timeline that you have for the MacOS and/or the Symbian compilers? (Personally, I'd give up either for PALM support, although I've always followed Macs. They have such a beautiful OS and interface.)
In the USA the PalmOS is market is BIG. The MacOS is dwindling, but still holding some in graphics and educational areas. I understand that Mac Worldwide sales were about 2% in 2003.
I always think about Symbian more for business applications--like bar code readers... I'm probably missing knowledge about Symbian though.
