Techie Dilemma – Multiple or single device?

Off to the Association of Learning Technology Conference #altc which this year is in Edinburgh. Lucky to be flying there but as only have cabin bags the dilemma is how much tech is needed? Are we at a stage when all is needed is a mobile phone? What is gained from taking IPad and DSLR? Yes the photos will be better quality and from further away but is that really important? The iPad means blog posts and tweets can be constructed on a bigger screen but this post is being constructed on a phone so is the bigger screen really necessary? Is therefore the phone finally up to the job in terms of speed and quality? Is the quality loss a trade off against the weight of the other devices? Not an easy decision to make but it is the way things are going. Maybe finally one device can do everything. ?