Pitt Students in London

I am looking for Pitt Students (or other college students) who have studied in London for a semester with the University.No need to call 911 as I am not looking for anything shady. I noticed on the Pitt web-site that students are given a travel pass for the time they are there but not for one week in March. I wondered what type of card you get and why none for the one break week. I think it would be better to be issued a travel card (monthly, seven, three and one day) which will give you unlimited travel in zone 1 & 2. I have to think that the guys at Pitt know about this but I don't know what pass students get while in London. So, how do you like studying in London? Way different than Oakland, uh?