Yes,
Ethan is definitely catching on here. It's at 15 (in 2008). One of my university friends named her son
Ethan about six years ago when it was less common.
I think a lot of American boys names are becoming quite trendy here e.g.
Hayden,
Jayden,
Tyler,
Riley,
Brandon etc. I've seen a couple of Caiden / Kaydens in the news lately so I think that whole trend will take off soon as well!