구글 c2dm 하루 전송 제한량

http://code.google.com/intl/ko-KR/android/c2dm/quotas.html

위의 글을 참고하면,

하루에 200,000건의 메시지 전송을 허용한다고 합니다.

만약 이보다 더 클 경우 구글에 연락을 해야하는데,

하단에 이런 사항이 있군요.

If your application needs to send a large number of C2DM messages, please analyze your design to ensure that you are using C2DM correctly. Some common points to review are:

• Are you using C2DM for payload? C2DM is meant as a means to notify your application that there are messages available for it. You should not carry your data payload through C2DM. Instead, consider adapting your design so that the C2DM message causes your application to connect to your servers in order to retrieve the pending messages.
• Are you sending C2DM messages too frequently? If you need to communicate with your application frequently over a short period of time, C2DM is probably not the best solution. Instead, consider implemeting XMPP or your own protocol to exchange messages, and use C2DM only to send the initial notification.