So how come...

Why do people put lines at the bottoms of their emails saying what device they sent their messages from? Is there some reason I need to know, or are they just bragging about their new toys? I've been seeing "sent from my Blackberry" for a while, just now I saw "Sent from my iPad."

This message was sent from my Windows XP box, service pack 3, FireFox 3.6.8. Just in case you needed to know that.