Arrange the sentences labelled alphabetically to form a coherent paragraph.

P. when the history of mobile phones in the UK is written, 2002 will be remembered as the year when something did not happen.

Q. This was supposed to be the year that third generation (3G) mobile phone services were due to start.

R. By now, many of us were supposed to have signed up for these futuristic services that turn your handset into something that does much more than let you talk while you walk.

S. Instead, 2002 has been a year that had more disappointments than delights for phone makers and mobile networks operators.