Nice... At first I tried that, only I forgot to put values %hash instead of keys. Oh well.

Oh, and if this were a golf, I could improve that by 2 chars:

$n=map keys%$_,each%h
[download]

Update:Whoops, as MeowChow pointed out, this doesn't work for hashes with more than one key.

The 15 year old, freshman programmer,
Stephen Rawls