Being both a tech director and a personal tech geek, I have access to lots of devices--A large beast of a laptop, an iPad, a Kindle Fire, an iPod Touch, a Chromebook, and my netbook. What's my go-to device? The lowly netbook. There is nothing that I do day to day that I can't do on my netbook; the size is right both for use and for portability; it has a keyboard that I can touch type on; and the price is economical.
I wonder if we don't aim too high when it comes to devices in the hands of our students and even our teachers. If we truly analyze what students and teachers use their personal devices for, I think we will find that less is more.