3 mobile phones & a paper notebook
Dr Robin Jeffrey, author of Cell Phone Nation, on the essentials he travels with

Utility knife I carry a Swiss army knife for communicating with mangoes, oranges and apples, along with my collapsible cloth shopping bag that carry the fruits.
Notebook I like the old fashioned paper one. I use my notebook for writing notes.
Torch I always carry a pocket torch. I don’t like the ones that come with the iPhone.
iPad I use my iPad more like an encyclopaedia. I keep it near the dinner table because when arguments arise, we simply Google the information. During the pre-iPad days, these disputes could run for hours and days because there was no convenient way to decide whether, say, Dresden was in East or West Germany. Now such things are settled in a Wi-Fi flash and we move on to the next argument.
Apps I tend to use Maps, Tram Tracker, Weather apps a lot. For news, I use the CNN, The Times of India, The Hindu and the BBC apps. Apart from that, Money Converter and Calculator come in handy during my travels.
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