I was browsing through some sites, when I came upon this product called BRING TIM!. TIM stands for Time Is Money.
It seems like a very much required device for most of the organizations which spend a lot of time in meetings. If they can keep in mind how many dollars are spent in the meetings, it can help save a lot of time and hence money.
The problem of repetitive and often unproductive meetings is predominant in corporates, politics, government offices and such similar groups which need lots of brainstorming. If such devices are installed and utilized in those places, it will surely help in increasing their productivity. Afterall, how many really like to sit all day discussing the same things again and again, without much results?
It seems there is also a free online tool which does the same. Visit Meeting Ticker.