Other features include the "Forgotten Attachment Detector, " which prevents users from sending messages without the necessary attached documents, and "Pictures In Chat, " which shows pictures of your friends as you chat with them in Gmail.

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If Warren Buffett called you up as the CFO and wanted to chat, do you blow him off?

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Even in more recent years, you were "online" for as long as you were looking at a web browser or a chat window.

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For those who bite, the good news is that you'll now have access to Yahoo Chat as well as every other Yahoo service.

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Technological changes such as the rise of collaboration tools make it easier to multi-task: you can have a chat window, a word-processing document, a Web browser, and other applications all open at the same time on your computer, and switch easily between them.

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The video chat is only to other Playbook tablets, so it is of limited value unless you consider it as an enhanced extension of Blackberry instant messenger.

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