I am currently a windows user and plan to swap to a mac before I go to uni. I've settled on the iBook due to better battery life (mainly.) When do people think the next iBooks will be released, and when they are, what will the changes be, (speed, memory, price, bt)? Also, if they are held back for Tiger, how long will it be and will the new software eat into the battery life? Sorry for the long post, it's my first.