Disagree. The iPad with 3G will easily fit in most handlebar bags, doesn't weigh much and should be easy to recharge on the OP's credit card tour. It's not the sort of thing you're going to use while riding the bike, but then again the iPhone isn't great for that purpose either. When stopped, the iPad seems like it would be a bit more useful: easier to view maps, easier to send/read e-mail, better for blogging, better book/magazine reader, etc. The iPhone is better for phone calls and taking pictures, or if you're a committed ounce-counter, but other than that I think the iPad trumps it...