Does the Nintendo DSi really have these features?

1.Camera
2.Mic(rophone)
3.Internet Connection (hence the i)
If you know of more that I didn't mention please add them.
P.S. can regular DS games play on them or do you have to get new ones?
P.S.S. can it play GBA games like the regular DS?
P.S.S.S. Best answer to the one who answers the most Questions.

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