With smartphones we are able to have immediate access to the internet which allows us to access any information with n seconds instead of having to wait until we have access to a computer. We are able to make reservations, look up movie times, find recipes, shop online, update or Facebook status, and find a local doctors office within minutes. Smartphones allow us to have more of a social presence. Even more businesses are focusing on having a mobile site as part of their marketing strategy.
More people conduct all of their internet needs on their smartphone because you are able to download hundreds of apps ranging from calendars, to-do lists, emails, games, books, movies, and music. On my personal phone I have word, excel, and PowerPoint, I do not use them but if I left my computer at home I would be able to connect my phone to a laptop and conduct a presentation from it.
In the next three to five years I feel that smartphones and tablets will take over and will be what businesses use to conduct business transactions. I think that businesses will soon stop excepting cash and strictly only accept debt and credit cards. This would eliminate some business expenses by switching to tablets instead of cash registers; it would also speed up the checkout process. If this were to occur the software industry would have to re-design to find more effective and efficient ways to give users the proper interfaces they need at the speed that they want to complete their tasks.