mobile phone SMS application

I need a light java application that runs on all java mobile phones it will allow you to enter a mobile phone number in a form click send. Behind the scenes the application creates a SMS that has two pre determined keywords and a short code. The application sends a sms to a shortcode with the pre defined keyword and the entered mobile number. All the user sees is the small form to enter a mobile number into and a send button. The resulting SMS is: Send to xxxxx KEY1 KEY2 mobilenumber xxxxx = shortcode KEY1 = first keyword Key2 = second keyword Mobilenumber = mobile number entered on the face of the application form We need to be able to provide a link to this small app that can be downloaded and run on any phone that runs java.