iBusy в Android Market

iBusy (v. 1.0) Разработано Godavari Android

iBusy notifies your missed callers that you are busy.

iBusy allows you to
  - Compose a busy message
  -Select the callers to be notified
       - All callers
       - All contacts
       - All favorite contacts
       - Choose specific contacts

It sends an sms to the caller when you receive a missed call from him/her.