... Does it run Linux?
If I had mod points I would mod you up!
But both of them are keyboardless devices running Windows XP Tablet edition, and frankly that sucks - a multitouch integrated UI specifically designed for keyboardless environments (not just bolted on like windows tablet) is really needed to make these things work proprly. I had wireless reliability issues (suspend resume problem) on the Toughbook I tested.
So yeah, I reckon a mooted Apple tablet with a ruggedised case (with a built in handle - this is important) may well be the way to go with this for now.
God made machine language; all the rest is the work of man.