Two years ago Facebook paid even more than that to acquire the WhatsApp messaging service, which doesn't have any physical product at all.

两年前，脸书为收购即时通讯服务 WhatsApp 支付了更高的价格，尽管 WhatsApp 根本没有任何实体产品。

youdao

Extended Messaging Service overview.

扩展的消息传递服务概述。

youdao

Openfire: an instant messaging service to communicate with.

Openfire：一种可与之通信的即时消息服务。

youdao

A Saudi Arabian official has said that BlackBerry's messaging service might be blocked there.

VOA: standard.2010.08.02

CD-quality sound on the company's instant-messaging service could provoke even steamier gossip around the coffee pot.

ECONOMIST: MONITOR: Instant messaging joins the firm | The

In Netherlands, the unusually high pricing of text-messaging services drove strong early adoption of WhatsApp messaging service.

FORBES: Text-messaging Volume of iPhone Owners Declining Sharply in Finland

For Facebook to compete with that, it needs to show off a more appealing messaging service today.

FORBES: Today's Facebook Phone Event: What To Expect