[thiagocmoraes]

I personally disagree with the idea of dropping the "Sent from my...".

I send lots of emails and sometimes I think it's good to send a quick answer from my phone if it will take sometime to get to a real email client to send a detailed solution.

Noting that you're not with a proper structure may help people understand some simpler and less kinder emails that I may send them if I'm in a rush.

Of course, my signature is "sent from my cellphone". More than that I agree it's a little lame.