Omniglot

[Revvik]

Obviously, this would be useful in several instances.  For example, use it to identify the language of the particular card you're buying when it's only listed as Asian FBB (annoying, really).
Also, JDizzle needs not apply, since I'm sure he could identify Japanese from Korean by smell alone 

http://www.omniglot.com/writing/korean.htm (linked to the Korean page due to laziness)