[dragonwriter]

> IMHO eventually the tides will shift and school districts and exams will start allowing cell phones

I doubt that will happen as an allowed accessory device, but what will happen, I expect, both school-issued and standardized exams will move from exams for which you can use an accessory calslculating device to online exams done on (possibly standardized, definitely closely monitored) computers which will have calculator utilities installed (possibly integrated into the exam), rendering dedicated educational calculators superfluous.