It better not be a big iPod
Like the title says, if it’s just a larger iPod/iPhone, than forget it.
On the other hand, if it has handwriting recognition (unlikely), a complete office package (iWork or whatever), a system for managing files and applications (a Finder), a universal clipboard, and a system with a very cleaver user interface, then maybe.
That, and keep it under $500. Otherwise I’ll just get a used IBM thinkpad tablet and slap OS X on it.
That’s all I got.