The desktop icon colorization can be a problem too if the background and icon colors are too close (at work now so don't recall which icon was blending in with the background).
Yeah. Opera and Microsoft Word both suffer from tile colours that mask the icon.
First I am hearing about Leap Motion and it looks awesome. If it really works as good as it does in the video then wow this is going to be great! I have a great 22" LCD monitor but its not a touch screen. So the Leap Motion could be a fantastic device for example for people who already own a good non touch monitor and are using windows 8 and want to use the touch features.
It really does look like a great product. Quality touchscreens are rare, especially when you're looking at 30" 2560x1600 IPS displays (i.e. they're non-existent). Another advantage is the ability to use touch functionality without greasy fingerprints all over your monitor, as well as the sensitivity - it can recognise every finger and thumb with huge precision, as well as depth. It actually looks to offer better functionality that traditional touchscreens, provided it works as advertised. Most importantly, it's really cheap for what it is.
If it can live up to its promise then it could have a major impact on computing, particularly given that laptop / tablet manufacturers are already working to integrate it into their products.