Hey Brooks. I think a lot of people (Craig, Jonathan, David and Brian) get confused by nKode’s length compared to a password. Assuming a 6 key 9 icon per key keypad, I think we can say an nKode is more secure than a password that’s double its length. Here’s the rationale:

A 4-icon nKode has 23-bits of entropy. NIST’s minimum requirement nKode can be half the length of a user created password. (i.e. 6-icon nKode a user creates a memorized password, it must be at least 8-characters in length. Since we can’t calculate the entropy of a user created password, we assume every character a user adds to their password adds 2.5 bits of entropy (20/8 = 2.5). Every nKode icon adds 5.75-bits of entropy (log2(54) = 5.75).  Therefore, we can say an nKode can be half the length of a user created password. (i.e. 6-icon nKode can replace a 12-character password)

I think this statement makes for good market because it's easy to understand, like "1000 songs in your pocket" from Apple with ipod.
