GmailSender allows you to change the name of the sender of emails sent from your own iDevice

  gmail sender is a tweak published yesterday in Cydia, and with its help we can change the name of the sender of emails sent from our own terminals. Normally iOS does not contain this option and takes the information set in your provider's email account, but this tweak implements in the iOS settings menu a new field where you can enter the name you want the recipients to see. Unfortunately, everything works for now only with Gmail email accounts, so don't use the tweak with another system.

Compatible with iOS 5 and 6. Annoyed at not being able to set the From address on a normal iOS Gmail account? Now you can! No new icons are added to your home screen – you can find the new "From" field in your Gmail account in the Settings app. Specify multiple senders separated by a space, if you like. This tweak affects apps that use the normal iOS mail support, such as the built-in Mail app. It does not affect the Gmail app.

  gmail sender is available for free in the BigBoss repo Cydia.