I think several of the steam mops, including this one have an optional carpet glider, which can be used to "freshen" carpets, but I didn't read very good reviews about it. We wouldn't use it anyway.
Even before DS was born, we were gradually trying to get rid of most of our carpet. When we first got married, I once didn't realize my vacuum cleaner was plugged for several months. I like the idea that with hard surfaced floors you can SEE the dust and hair and sweep it up, unlike carpet when you never know what's lurking in there. Bleah