This is like Windows 98 all over again. But wait...Win98 icons used more colors than this. I could go into MS Word 2010 and apply a simple bevel to these icons, and it would look a million times better already. This reminds me of Adobe's CS3-5 Icons, except there's no gradients.
@RoodVargas, Since desktop customization seems to be a niche market now, you could work on and release a "spiced up" version of these metro icons with high-resolutions for docks; as well as shadows, lighting, reflections, bevels, etc. For the casual, mainstream market/users, release the same icons as you pictured above. Just a suggestion.