My guess? No.<p>If the tablet supports keyboards, people will think of it as half a laptop.  The keyboard will be denigrated as an unofficially-required-but-not-included peripheral.  Everyone will get stuck on the usability annoyances of lugging around a tablet with separated keyboard and 'how do you prop up the screen'. (Chance of integrated kick-stand is around 0)<p>Further, devs will get keyboards and write software that assumes people have them too, exacerbating the above.<p>A pen is iffy.  I don't think Apple wants anyone thinking of the tablet as another-pen-based-mistake.  Not while finger-on-iPod is such a smashing UI success.  But the upside to a stylus is pretty huge (maybe they'll attempt to re-brand it as something else; a 'brush' perhaps).<p>But I think physical keyboards are right out.