I get excited about different laptops occasionally...and then I remember that I won't have a trackpoint if I switch to a different brand, and I get disappointed. Literally happens every few months.
I fully understand I'm a vanishing minority, But trackpoint is such a productivity booster for me, and makes such amazing use of space in a laptop format, that it's a must-have (and again, I fully understand that those who don't use Trackpoint will have no comprehension of what am I going on about; I'm a grouchy quirky old man :).
Then there's other little things that may or may not be trackpad related - small function keys, lack of standard home/end/insert/del/pgup/pgdown cluster, and the collapsed arrows which I don't even understand - you have the room, it's right there, nothing is using it... why is everybody making up and down arrows functionally unusable (I want to blame Apple, but as Obi Wan said - who's the bigger fool, the fool, or the fool that follows :)
I've tried it on both Windows and Linux. I realize I'm not used to it, in the beginning I used to have a hard time with mice, too, so maybe it's just a question of habit.
For the moment, the only thing it does is leave a round trace on my screen whenever I close it...
One nice thing about many used ThinkPads at least: trackpoints are usually the one component that are brand new on the device :D