The device permits multitasking, letting you, for example, simultaneously surf the Web and chat via IM.

该仪器让你能够同时处理多个任务，比如网游的同时又能通过即时通信聊天。

《柯林斯英汉双解大词典》

Turn off IM and chat.

关掉即时通讯和聊天。

youdao

Turn of IM and chat.

关掉即时通讯和聊天。

youdao

The V10.2010.19-1 bump now available in the UK (global on Wednesday) packs several enhancements including face-to-face video calling, improved Ovi Maps, and a better email experience with bundled Facebook IM Chat and the ability to accept or decline event invitations from the inbox.

ENGADGET: Nokia updates N900 to version 1.2 in UK, closes door on MeeGo

Other failings like the lack of MMS, IM chat and video recording are even more mysterious.

ENGADGET: Apple iPhone review roundup Mobile

The software is an important addition to Google's catalog, but offering IM and chat is just keeping up with the Joneses.

FORBES: Google's Big Bet: Beyond Instant Messaging