lol, thats awesome. i suppose i shouldn't be surprised. Can do a heck of a lot with a couple dollars of silicon these days.
I'd be open to allowing smartphones/tablets on all tests so long as there's no internet. Note taking is more important then ever imo, and knowing how to apply things rather than doing he computational machinery in your head is the more valuable skill to spend time developing (not that we shouldn't teach mental computation at all, just de focus it)
Shouldn't hike the prices on the super old TI-89 Titanium unless the screen (and the CPU, and etc.) is really that much more expensive now.