I took Katie back over to the park to try another round of Ingress with her tablet tethered to my phone, but the experience still was greatly frustrating for her. I attribute this to the fact that her tablet doesn't have GPS built in.
I had been kicking around where I could find a cheap tablet with GPS and then I realized we already have one -- the Galaxy Tab 7 that we run charges on.
Well, it'll make sure that it's working in between cons. :)