Nice that you decide not to actually read the article you think disproves the idea. Try this section, which explains how the infinite limit of 1.999... is equal to... *wait for it* ... 2.
http://en.wikipedia.org/wiki/Limit_%28ma...t_infinity
Do you not think that if this were some kind of disproof, the 0.999 page at Wikipedia would mention it? No. Instead it shows 2 elegant proofs (which I repeated here with the addition of another) of how 0.9... = 1.