The IM client also supports other popular services like AOL and Yahoo, and can run in the background while you do something else, unlike the iPhone.

即时消息的客户端同样支持其他流行的诸如AOL和Yahoo的服务，而且当你做其他事情的时候可以在后台运行，不象iPhone。

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Prior to the Xfire service, there were clearly a number of pre-existing IM services (Yahoo, AOL, MSN).

Xfire之前，市场很清楚地已经有了一些早已存在的即时通讯服务(yahoo, AOL, MSN)。

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Other IM programs don't require that--users of AOL Instant Messenger, for instance, might have a totally different IM name than their e-mail address, or might not even have an AOL account at all.

FORBES

In approving the merger last month, the FCC ordered AOL to comply with several IM checks.

CNN: AOL rivals team on IM interoperability

In setting the conditions that apply to IM, the FCC was concerned that AOL Time Warner could use Time Warner's cable networks to extend its current dominance in text-based IM into new "advanced" IM services that will include multimedia components such as video conferencing.

CNN: AOL rivals team on IM interoperability