How do I edit the "Sent from my BlackBerry®..." message?

From BlackBerryFAQ

From your Computer:

1. Login to you BIS site for your carrier. Carrier BIS login sites are listed here:

http://blackberryfaq.com/index.php/Where_can_I_log_into_my_BIS_account%3F

2. Click on the "edit" next to the email account on which you wish to edit (or remove) the signature.

3. Where it says "signature", delete all text if you want NO signature, or edit the display what you prefer rather than "Sent from my BlackBerry..."

4. Click SAVE.

From your Device:

1. Launch the email setup icon.

2. Sign Into your BIS Account.

3. Edit the desired email account.

4. Change your signature under the "General Options"

5. Scroll down to the bottom and hit "save"