Different Product ID for each attributes combination

Is it somehow possible to have a different product id for each combination of attributes?

For example I have adidas shoes with three possible colos and 10 sizes.

Product ID could be normalproductid_attributescombination
lets say adidas01_b09 where the first character would be the color and other two the size.

It could also work great for attributes tree where some attributes depend on other attributes. And stock by attributes.

If I had a list like this:
adidas01_w07
adidas01_w08
adidas01_w09
adidas01_b06
adidas01_b09

It will show first attribute black / white. When I select white It will show me sizes 7,8,9 and when I select black it will show me 6 and 9.

In the downloads/other area there is a stock-by-attributes mod by kuroi that will allow this stocking.

It will show first attribute black / white. When I select white It will show me sizes 7,8,9 and when I select black it will show me 6 and 9.
It will not do this and this would take a good bit of custom code to make functional