I have used PassPorter three times (all for WDW) and taken it to the park each time. I find it helpful to refer to during the day - especially the maps. If you're organized and can remember reservations for meals, etc., you may not need to take it with you. And, of course, I would write the day's events in once back at the hotel each night!!
I just got my very first PassPorter when the DLR PP came out. I have yet to use it as my next trip won't be until Fall 2007. But, I did use to keep a journal for all my DL trips. It always stayed in the room. I would before going to bed write down all that we had done for the day and organized all the other stuff you collect throughout the day. I will probably leave my deluxe PP in the room as well and got through it in the evening.
Last year we took the PassPorter with us to the parks. I removed the pages we didn't need, lodging, water parks (in Jan) and it wasn't heavy at all. I like to stay organized, so I took it to put receipts and etc in the folders. We park hop a lot, so I liked having all the info. with me!
I am definitely planning on bringing it into the parks! When I'm on vacation, I always carry a guidebook around in my backpack. I just like to have the information handy at all times. Plus, I keep myself busy with it while waiting in line, for example.
We don't take PassPorter into the parks. I have it in the room to look at to check out any itinery plans for the next day (restaurant reviews, etc). We went last month with the latest edition and it was really helpful despite it being our 32nd trip!
I did take the Treasure hunt book in the parks - a friend bought one for me and mailed it as a surprise to my hotel and that was great fun
May in Bermuda
August on the Magic in the Med
Jan 2012 back to WDW
Location: Cypress....Deep in Southern Illinois, close enough to see the Kentucky blue grass
This will be my first trip to Disney in June with the aid of a Passporter but I as well as several on here have mentioned, leave it in the room. I plan on writing in it every day and make notations but with everything else we carry into the parks that one won't fit in a fanny pack.
I took mine with me in to the parks (and it looks it!!) - tell you the truth, I would have been lost without it! It did help that we had 2 3 YOs and a twin stroller so it was simple to toss it in to the basket below or a backpack.
i have been to Disney several times and love my passporter. I normally take it in a back pack in the parks and when I need it I just unzip the back pack and take it out. Since it hold all of my trip information I like to have it with me.