I really wanted to correspond in another really good thread on brainwallets, but alas, I'm a noob.

So, here are my questions:

1) In generating a brainwallet on bitaddress.org, what is the limit for the number of characters in the passphrase?

2) On the site bit2factor.org, in creating an encrypted private key, what is the limit for the number of characters in the passphrase?

Thanks.