As mentioned previously, I've been waiting on a Verizon V640 ExpressCard for my MacBook Pro. It arrived this week, and I had a chance to try it out yesterday. I plugged it in, waiting a few minutes, entered the root password, and voila! - I was online. Pretty slick stuff. Bandwidth tests show the speed is around 512 KB/sec. With all the wireless issues I've had, this thing is a nice treat. Who knows if I'll even bother to use wireless anymore!
Speaking of MacBooks, it seems that the first ones produced were some of the best. I have 3 co-workers with machines, and while one works great, the others have some serious issues. One randomly reboots (without warning) and the other guy's has been in the shop for a week b/c it has kernel panics 2-3 times per day. Besides the wireless, the only other issue I have is mine doesn't work on some projectors. Since I'm doing a lot of training and conferences in the next few months - I should probably get that looked at.