Have you ever wished for some sort of notification system where you could glance at it and know everything you need without having to dig down into details. Well the blink(1) may be just that device which can help you to know what is going on with your computer. This is a simple device which can plug into the USB port of a Mac OS X, Widows or Linux computer to tell you what is going on without having to look at a screen. If you can imagine a computer center as pictured here, you get the idea of just how great this product can be.
The blink(1) is available now and can provide 3 different dimensions of information. That is color, brightness and patten which you can handle by writing some code to control it. At a price of $30, this seems like a great gadget for you to put onto your laptop or computer. All you have to do is write a little code to identify what you want to track and how that is then displayed on the blink(1). If you can find something to be tracked, you can then communicate that on the blink(1). This seems to have so many different possibilities in what you can do with it, that you can think up a large number of them. There first example is knowing when a particular person has signed into Skype. The idea of identifying things on a computer, such as network traffic, emails, CPU performance, make this interesting.
Following is a video about the blink(1).