Motorola has invited the media to attend a special May 13 press event that will take place in London, Engadget reports, and while it’s not clear what new products the company will unveil, it is believed Motorola could introduce to the world its cheapest Android handset yet. Dubbed the Moto E in some reports, the upcoming smartphone should be even more affordable than the Moto G that launched last year and which quickly became one of Motorola’s best-selling devices. The company is already rumored to be working on several new smartphones for 2014, including a Moto X successor, and even a handset of phablet proportions, although it’s not clear when these devices will be launched. A few weeks ago, a report from Brazil