Presence

Presence is a communications app that allows you to signal whether you're available for a phone call: a way to avoid telephone tag. Think of it as an extension of the status tag in your instant messenger:

Presence helps solve this problem by letting you know the availability of the other party to take your call, before the call gets made.

It's free:

Fast forward to today… our business plan is to deliver, for free, a great mobile presence application to handsets beginning with BlackBerry but ultimately extending to any Symbian or Windows Mobile handset. We’ll make money from additional presence enabled applications that depend on that infrastructure.

GigaOM » Does Presence really matter?

technorati tags:presence, mobile, phones, voice2.0

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