Yes, I've seen those kind of dust covers earlier too but the idea in my mod is bit different though. You can actually see the display screen while the cover is on.
Anyway, there must be similar kind of mods around the net already but writing own tutorials about these things is still good way to advert this great technique. If making tutorials from something that has been already done you wouldn't see Glowpads, mousefans etc. anywhere on the net than MetkuMods.
Main Computer: Intel i5, MSI H55M-ED55, 12 Gigabytes of DDR3, 3 Terabytes of HDD, GTX295 and Benq 27"