I think a mac tablet would work if:
*It had a built in DVD drive
*If it had a 7 inch widescreen
*If it were less then 3 pounds
*If it wasn't excessively skinny and thus difficult to grip
*If the battery life was such that one could use it as a daily companion (5 hours with screen on dimmest setting)
*If it were price affordably, and not priced similar to a full featured laptop:
---Version One: 20 GB HDD, CD 1.83 GHz, 512 MB RAM, Combo drive- $599.
---Version Two: 60 GB HDD, CD 2.0 GHz, 1 GB RAM, Super drive- $799
---Version Three (Black): 60 GB HDD, CD 2.0 GHz, 1 GB RAM, Super drive- $879