i recently owned a powerbook 17" but have only used it working from home.when the new mbp C2D was released i placed an order and went for a new 17" now i am really thinking if i have made the right decision. i was on the apple configure page for about an hour trying to decide 15" or 17"? 15" or 17"? 15" or 17"? etc. due the 17's portability,or lack of . i may have to use this new mbp out and about in the near future,and wanted to know how you mobile 17" owners get on? do you have problems using it in coffee shops,on trains,or generaly out and about? on another note the measurements are not that bigger than a 15"mbp only about just over an inch longer and just under an inch wider so im thinking thats no big deal. i can still cancel online ATM,and re-order a 15".