[OT]Seeing as I come from England I don't consider that type of slang talk as English rather a slang Bastardised version of English.
I agree while it may be o.k for people to talk like that in every day life with friends I do feel it is more polite to use proper English when posting on forums like this, especially as a lot of people here are from different countries and English is not their native tongue.
I think out of good manners to them it would be polite to us proper English.
Going back to what Pro said God only know's whats in store for the English language in the next 20 years I dread to think about it.

[/OT]