C2DM - 限制 Gmail 帐户
看来C2DM只是连接到Gmail帐户，所以手机上没有帐户的人无法使用它。
您是否找到了绕过此限制的解决方案（我不知道，也许有一批现成的 gmail 帐户可以提供给正在安装 c2dm-app 的用户）？
谢谢。
It seems the C2DM is just connected to Gmail accounts, and so it cannot be used by people who doesn't have it among the accounts on the phone.
Have you found a solution to bypass this limitation (I dunno, maybe having a batch of ready gmail accounts to offer to the user that is installing the c2dm-app) ?
Thanks.
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我认为用户不必拥有 Gmail 帐户，但他需要一个 Google 帐户，因为推送通知机制仅适用于已安装 Android Market 应用程序并注册了 Google 帐户的手机。
还有一些其他第三方解决方案。例如城市飞艇。
I don't think the user has to have an Gmail account, but he needs an Google Account as the push notification mechanism only works with phones which have installed the Android Market app and registered their Google account to it.
There are some other third party solutions. E.g. Urban Airship.
C2DM 是 Google 服务的一个接口，用于推送邮件、日历和其他 Google 内容，因为移动设备需要 Gmail（gmail 或 Google 帐户）。
如果你要推送到不同的设备（主要是 android 和 iO），Urban Airship 会抽象你的服务器端，所以我认为这也不是一个解决方案。
实现此目的的唯一方法是创建您自己的服务，在后台接收推送，可能使用 xmpp (asmack< /a>) 或彗星系统。
The C2DM is an interface for the Google service that push the mail, calendar and other google stuff because of that the mobile device needs a gmail (gmail or google account).
Urban Airship abstracts your server-side if you are doing push to diferent devices (mostly android and iOs) so I don't think it's a solution neither.
The only way to make this is create your own service that receive the push in background, maybe using xmpp (asmack) or comet systems.