I also want to be able to go to somewhere like Yosemite where I can camp out in the middle of knowhere, yet still have my iphone and do face time. Not so much that I cant live without it, but just be able to have the best of both worlds.
Nothing is stopping you from doing this. I have been camping at Yosemite many times (and other places as well) and it is a very nice balance of nature and technology (if you choose to bring your technology along). I love camping. Though I must mention that Yosemite isn't really the middle of nowhere anymore, it's quite popular and often crowded, but there are many places in the Sierras where there are less people around.