You see this announcement in an international magazine. What is the most important piece of technology you have? Write us an article about it, saying why it is so important to you and how it could be improved. The writer of the best article will win a prize. Write your article in 140 - 190 words. What's the most important device you've ever had? Have you ever heard about the vacuum cleaner Roomba 980?We all know that those electronic devices, which work automatically, help us a lot. However, many people agree that the cost tends to be extremely high but this one was a gift from heaven. My husband and I received it when we got married and we have never forgotten it for many reasons. Firstly, it' s able to clean not only floors but also rugs. Moreover, once you turn it on, it doesn't make sounds. Secondly, we may take its control by through other devices. For intance, I often use it with my mobile phone and this is due...