It's called Voxxcast, and it allows you to leave voice messages on Facebook via your phone.
I'm definitely interested in any feedback you can give me. I plan on creating a lot more apps and developing this one even further.
http://www.voxxcast.com
I'd work on the design a little. The not-in-use buttons (by default, 'Login' and 'Register') look a little bare. How about putting an arrow frame or light green square over them (when not in use). That will help to break up the giant green block.
The text itself could also use a little work.
I would probably cut out the ads too -- I can't imagine that many people would click on them, and their presence drags down the rest of the design. You probably won't make a ton of money from this, so think of it as a marketing tool to advertise yourself, not a way to make a few bucks a month.
Other question: I'm curious as to how long you've been teaching yourself, and what previous programming experience you have? I'm currently teaching myself Ruby (with little-to-no programming experience) in order to launch a start up.