Hmm....I do not own an iPhone or an iPad...for that matter not even an iPod. But when I look back, the biggest and most positive change in the last 5 years has been social networking sites and the fact that these new iGadgets can be used to instantly upload photos, videos, and even your emotions :P It is amazing to see how iPhones have replaced baby toys. I recently visited a family friend and her 1 year old was given an iPhone to grab his attention while she fed him lunch. On a more serious note, the new gadgets are getting more and more intuitive to operate...my 2 year old niece can figure out how to get to the games on her dad's iPhone much faster than my mom took to figure out how to connect to the internet!
Perhaps in the next 5 years, we will see more multi-purpose and affordable gadgets replacing the good-at-one-task gadgets like cameras and GPS. We will probably also have add-on apps available to mimic Siri on laptops? So if all systems at your home like the washing machine / dish washer could "talk" to you.....you could probably instruct them remotely over a call :P Well....that would add more "contacts" on your list..lol. Then, I guess very soon we will need voice authentication...since these machines should only listen to their owners? :P Am also interested to see how far we go with the Spoken Web that IBM research is working on.