Mobile phones have been extensively in the news over recent months. First there were concerns about brain cancers, followed by major job losses in the mobile phone industry (a sort of proof that what goes up must come down), and most recently the problems of the changes to telephone numbers. I won't elaborate on the latter. Suffice it to say that 25% of phone owners were apparently unaware of the fact that numbers were about to change, and found that their phones were dead.