fetching crypto values

Maybe we could extend the support for getting crypto values?
Something like hackr.crypto.convert('eth','usd') would fetch the current eth to usd?

to be sure, you want to find the encryption that turns eth into usd?
like
hackr.crypto.convert('hackr','0cbb7cc60b77fe81355c3b116837a5e50b747311')
'sha1'

It could be a basic crypto currency conversion tool to return the values in some other currency.