Direct Messages: Users, and those in my community, are starting to direct message each other using Facebook's 'email' type of capability.

直接联系：用户以及那些社区同仁，彼此之间开始使用具备email功能的Facebook邮箱直接联系。

youdao

Mobile computing devices such as PDA, mobile phone are of limited resource and slow Internet access capability, so the speed of receiving email is relatively slow.

移动计算设备如pda、手机等具有资源少、网络速度慢的特点，因而其接收电子邮件的速度较慢。

youdao

The free version has no email capability, and the app doesn't support common file-transfer services like Dropbox or SugarSync.

WSJ: Working In Word, Excel, PowerPoint on an iPad

Its capability to send and receive email, review documents, and surf the web are far superior to that of a smaller smartphone because the Internet was not designed for four-inch screens.

FORBES: Is The iPad Better Than A Cell Phone For Global Roaming?