So apparently the fastest texter in the world can text "Supercalifragilisticexpialidocious! Even though the sound of it is something quite atrocious. If you say it loud enough you'll always sound precocious" in just 42 seconds, which is about 3.6 characters per second.
In my competitive spirit I decided to try it out....
60 seconds. Not too shabby. Just 18 seconds behind the world's fastest texter. (and I wasn't even trying that hard.)
How fast are you?