From the name it does not sound like a serious security company. As a matter of fact, it sounds more like a joke than a real security company. I can't tell you exactly how serious they are and how secure is their software, but, what I can tell you is how cool it is and how good it works. And that pretty much does it for me :)
As I mentioned before, I got myself a new computer. It came with a lot of cool features like wifi, firewire, 4 usb ports, integrated web cam and what I thought was the coolest feature until today, the finger print reader. I've been using it from day one and I love it. I love not to writing a password anymore, just swipe the finger and that's it.
But today I discovered what was only seeing (at least for me) in movies. Banana Security has a software that using your notebook's web cam takes a picture of you and associates it with your Windows account. After setting that up I can lock my computer and only my face will unlock it. How cool is that? I've just installed so it does not have cons, yet. I tested with my wife in works just fine. When she was sitting in front of the computer it wouldn't unlock, but as soon as I popped in my Windows session was up again.