Researchers from Bradford University have found that using a cellphone may increase short term memory in men:

The researchers found that the men who were given active mobile phones made fewer mistakes in word recall than men with inactive phones. Female participants seemed to be unaffected by the experience

Alright, it's not much of a study (33 men and 29 women) and they only tested them, like, twice, but it's posted at a health news site so it must be important....

...via Gizmodo