Inevitable? Yes. While most companies will highlight the games, the rich content and apps available for a tablet there is no denying that the same people also want to make their tablets friendly for the productive types as.
Apple has a keyboard, but with Asus releasing the Transformer this is the first tablet to take a keyboard add-on seriously and it seems others are about to follow suite starting with Motorola. According to this leaked document it seems that they are handing their Xoom tablet a folio case with a keyboard that connects using bluetooth. No word on price and release date and while it wont be the same experience as the Asus Transformer will give you it will be a welcome addition none the less.