I am new to the Android Development Process, but it is currently a great experience! I have received many emails of appreciation (I am hoping the users are using it for a legitimate purpose)...
My application Liedentity allows you to send emails to anyone from anyone that you want. (It is FREE!)
I don't have an android development phone yet, but I have been getting feedback that the performance is not what it could be on various phones (I use the simulator) I would like to get as many people to use the application as possible so I can get a better feel for the development on the Android!
The application is in the Tools category.