Here is new method to do this
- Go to the Developer console
- In the “Help & Feedback” > “Manage Your Apps” > “Transfer your application”
- Follow the instructions and make sure you have the details from the suggested checklist available
- Submit the form
- You will receive instructions on what to do in about a day.
Once you submit the form you will see the below message:
Please note, we’ll do our best to respond to your request within one business day. This depends heavily on the complexity of your app transfer request, and the completeness and accuracy of the information you’ve provided. We appreciate your patience while we process your request.
OLD METHOD:
You can transfer you app without loosing download count or rating.
The steps to transferring your app/game:
- click: Developer Home > Help > Contact Support > Developers > Publishing and Distribution Issues
- Fill out the form completely and accurately
- Select “Transfer Applications to Another Account” from the Issue Type drop down
- Submit Form
- Check your E-Mail and reply with the requested information
- Forward the E-Mail to the person accepting the app/game transfer and have them reply as requested
- Wait for Google to wave their magic wand
Here is the link, Hope you find it useful.
http://phandroid.com/2012/06/21/getting-acquired-how-to-transfer-ownership-of-your-android-app-or-game/