Cisco’s popular meeting and collaboration tool WebEx has found a new home on the iPhone, and, frankly, it looks very impressive and will add a new layer of utility and functionality to the iPhone in the business world.

The free application lets you attend any WebEx meeting over 3G or Wi-Fi, including simultaneous conference calls, chat, and document sharing (a headset is recommended to use it all).

Several sites have put it to the test and are very impressed by the application, and if the video demonstration is any indication it’s a pretty impressive offering for the mobile worker.

[youtube]0UyfwB_2CFo[/youtube]

WebEx is a free download, and works with the iPhone and iPod touch only (though clearly two-way voice isn’t really an option for the iPod touch). This app should definitely perk up interest in the business arena for the iPhone.