I have Joost on my computer and it’s practically a new world wonder. Finally, a TV app that looks great and works even better. The user experience is absolutely flawless - sexy, simple, cool. It blends the benefits of TV and Computer interaction very well and the quality of the video itself is the best I have seen. Even the inserted ads don’t look intrusive, perhaps because we are all so used to ad-raping by network TV by now. These folks are doing something right. 

But will it succeed? I see one, huge, problem. It can’t be used at work! And what is the only place left without TV access? That’s right. Work!

Let’s take a look at the successful viral apps of the last decade - Instant Messaging, P2P File Sharing, Skype, Blogging. All have one great thing in common - we can safely use them at work. I am not referring to IT security because most of us couldn’t care less about IT security. I am referring to job security. The ability to play hookie without getting caught. IM and Kazaa could simply run in the background and consume very sporadic attention. You can download a file and write a post without drawing the attention of your roommates, or worse, of your boss. And you can minimize all in a split second if someone walks behind your back.

Can you do that with Joost? Nope. TV is TV. It takes up your attention and it’s intrusive to the environment. Wearing headphones is possible in some places, but then the detachment from the environment is so complete one cannot really sit back and enjoy without keeping an eye on the door. This practically means Joost will hardly be used at work but at home. Except that at home we have a great alternative already - a 30+ inch TV with gazillions of channels.

Which means the premier target audience, for now at least, are kids playing in their room behind closed doors, assuming they have attention span left to squeeze between MySpace, TV and PlayStation. While I don’t underestimate the huge potential of that target audience, I don’t think it’s up to par with the wide audience and virgin attention span IM, Kazaa or Skype enjoyed.

Then again, Joost has all the right ingredients. P2P technology is definitely mature enough for Video on Demand. You couldn’t ask for better founders - both in terms of technology and of marketing. We are all really, really tired of outdated TV content distribution models and Joost will have no trouble at all getting a first time look by any reasonable user.

They should be smart enough to have a plan for that problem too. I am just curious to see what that is.