Some may not know this (or care), but I play music.  Yes with the CD player, et al, but also the old fashioned original way, by making it myself.
Some time ago (few years)  I bought myself a little thing called "Silent Brass" which i plug into the bell of my instrument and it sucks nearly all the sound of my instrument and feeds it back through a pair of headphones.  The next thing I got was something called smart music, which can be found at a website by that name.com, which actively listens to me as I play, and provides accompaniment for me as I play a concerto, or sonata, or something else, whatever it may be.  ver very cool.
Well, my music life these last severa lmonths has not been what I wanted it to be.  My PC has reached a point where a complete backup, reformat and reinstall was necessary now 7 times since it's purchase in July 2001.  Everytime I do this, I have to go through the process of reinstalling the program, then resetting ym smart music account so it sees my PC again.  With the new iBook, I feel that to be a thing of the past.  My iMac, which I've had for over a year, and my dad's iMac, which he's had for a couple years at least have never once had an actual crash, so I figured i'd put smart music on my lil travelling buddy, which will bring me full circle, since the first time I used this particular program (then called Vivace) it was also on a Mac.  Anyway, I'm super excited, because a new disc is on it's way for me so I can have the newest version of Smart music on my iBook, and will have a very cool option available to me for the first time ever:  the ability to have intelligent accompaniment anywhere I go, while I play as loud as I want without bothering a soul.
Anyway, just FYI.