Don't know mate I've just installed the not606 app on my phone and trying it out Sent from my F3311 using Tapatalk
Found this Guy "How do I delete or change my mobile device e-mail signature, you ask? The process is different for every mobile platform, but you can usually just go into your e-mail client settings and modify an e-mail signature field. It's a bit more complicated for BlackBerry users, especially if your device is on a BlackBerry Enterprise Server (BES), but I recently wrote a tutorial on the subject that details the process."