At the World Mobile Congress in Barcelona, the emphasis is on speed, power and versatility. Phones this year are going into pens, watches -- even underwater. AFT TV takes a look. Sign up to our free newsletters Email: Get the best updates straight to your inbox: Daily newsletter (the day’s top headlines, sent every morning) From the editors (a curated selection of stories, sent every Saturday) Please select at least one mailing list. You can unsubscribe at any time by clicking the link in the footer of our emails. We use Mailchimp as our marketing platform. By subscribing, you acknowledge that your information will be transferred to Mailchimp for processing.