Here at RPI (Rensselaer Polytechnic Institute) we've been required for the last 3 years to buy a laptop freshman year. 802.11b is available in most of the important places on campus (lecture halls, student union), and anywhere it's not (eg. labs) its because there's already ethernet jacks built into the tables. OC-3 to the internet and even bigger pipes to Internet/2 spread over about 4000 students ends up being pretty nice =)