The lowest CPC

What's the lowest possible CPC in various currencies?

[marek]

I'm curious what's the lowest possible CPC in AdWords after the changes in pricing algo in September. Regarding US Dollars only, it's obviously 1 cent, because AdWords apparently can't deal with less amounts than 0.01, but what about other currencies?

I maintain a client's account in Czech Crowns (CZK) and I've achieved average CPC as low as 0.10 CZK with a couple of words, what equals 0,004 USD.

What's your experience with other currencies?

[fish_eye]

I've seen a US 0.00 CPC - but it's possible that either the CPC had not yet been calculated or they suspected I had clicked on my own ad?