I have taken apart all Apple PowerBook, from the 100 series (my 180c
probably more than 100 times) to the Wallstreet/Lombard/Pismos
including iBooks. The 190 has become a 190cs, then a 5300c and
finally a 5300ce: from a close exam you cannot really tell it has
been taken apart probably once a
Ability to take apart is big selling point for IBM ThinkPads, Panasonic
Toughbooks
and Toshiba Tecras, at least in the old days (don't know about the new ones).
For
example, to remove the hard drive from most IBMs, it only takes one screw that
is
sized and shaped to remove with a coin.