Video, while great, takes too long. We e-mail, instant-message, and tweet for a reason: it's short and to the point. Who has time to watch a video each them they want to communicate?
Perhaps even more critically, as Hampus Jakobsson pointed out to me (over Twitter, no less), video "requires full attention--the scarcest of all resources."
Cisco gets this. At least, groups within Cisco get this. That's why Cisco Senior Vice President Doug Dennerline's WebEx team has been adding presence and instant messaging through Jabber, e-mail through PostPath, and more to its Web-conferencing suite.
It's also why Cisco will almost certainly add some form of office productivity suite to WebEx, despite protestations to the contrary from Alex Hadden-Boyd, director of marketing for the collaboration software group at Cisco. (Apparently, Hadden-Boyd didn't see the memo from his boss, Dennerline.)
Zoho is a leading competitor to Google Apps and, in many areas, actually surpasses Google Apps. While some of Zoho's applications directly overlap with Cisco's current products, the sheer breadth (and, in some cases, depth) of its office productivity and collaboration story must be intriguing to acquisition-hungry Cisco.
Some suggest that Google will struggle to make it in the enterprise due to security concerns with Google Apps. Cisco doesn't have that problem. Its brand oozes "enterprise." As such, it may well be Cisco that changes the face of enterprise computing...by initially changing the way we communicate and collaborate within the enterprise.
Just don't hold your breath for video to part the waters. Video has its place, but it's a highly verbose form of communication, and the Web's most popular technologies increasingly teach us to speak sparingly.
Follow me on Twitter @mjasay.