Don't send kids to school without their external brains

I traded in my first iPhone, a 4, on Monday for a 5s. With a new contract and a generous Best Buy trade-in, I was out about 80 bucks. I expected to spend most of Monday evening installing, tweaking, restoring, organizing apps and such but by simply "restoring" from the settings of my old phone, I was up and running in about 30 minutes. Amazing.
I've long argued that asking kids to leave their phones at home is not only unwise, but cruel. All of us, adults and kids, have been assimilated with our smartphones providing external Borgish brains, admit it or not.
Phone numbers, calendars, address books, to-do-lists, flight schedules and such, I have long relegated to device memory. I've started to use the camera on the phone to help me remember my hotel room number, parking space, my grocery list, - anything this aging brain finds itself forgetting. (See below.)
So why should students not also be able to rely on these memory-assisting devices - for assignments, to-do lists, notes, etc. Snap a photo of a teacher's Powerpoint or homework assignment from the board.
More importantly, these devices provide instant access to information related to questions that come up during discussions or studies. Two incidents drove this home for me:
On a road trip a couple summers ago with the grandsons, we drove through the town of Lodi, WI - Home of Susie the Duck.
The LWW and I turned to each other and asked, "Who is Susie the Duck?", feeling culturally illiterate. But by the time we were out of town, grandson Paul had used the 3G connectivity on an iPad to find out who Susie was and why she is still honored by a fesitval in her name. Boom. I'm sure had we waited to get to a desktop computer or library, we'd have forgotten the question.
More recently, a fellow Kiwanian (even older than I am), nudged me during our noon lunch meeting and asked, "Hey, would you use your phone to look up how the 'beef commercial' dish got its name." So even those who don't have external brains themselves know they exist and how they can be used.
We have to stop banning student-owned smart devices in our schools; stop sending kids to school without all the resources they can leverage in their learning.