I picked Tablet because that's the newest thing on our list. You didn't have a list for all so here's mine.
2 hand held radios
1-2 Laptops one is mandatory I run my company and will never turn down a call to help make payroll, the other depends on wether my DW needs to do some grading
2 "dumb" phones (can send pic text that's as smart as they get)
3-4 Ipods ranging from the old style nano (square one) to an Ipod classic 160GB
1 Nook tablet converted to Android Jelly Bean
1 Nook color strictly for reading
1 Nook simple touch If my son wants to pretend to read that is.
1 Ipad wife wouldn't go anywhere with out it (work supplied it she never lets that thing out of her sight says she won't be the first one to loose it).
1 hot spot to make it all work.
How much gets turned on
Here's the stupid part
On an average trip I only turn on my laptop if a customer calls. the 160GB Ipod runs all the time because mine has ALL the music everyone else has individually, the kids use their little Ipods sometimes mostly when Hank, Merill, and Cash come on. The Ipad or Nook tablet gets turned on about once a night to check email and read a couple forum related things. Nook color and simple touch get used for reading magazines and books.
I think we could save 50Lbs if we would stop bringing all that with us. And I am real proud of our kids they don't bring anything like video games or computers. We went to Yosemite in July and they never turned anything on just played with stuff they found around. And we pride our selves on trying to pick camping spots (when we are going for more than a weekend) without cell signal so even the parents will have to unplug more.