In the font that Keychain Access uses to display passwords and the contents of secure notes -- a font that you cannot set within the app, to my knowledge -- it is extremely difficult if not impossible to distinguish 'l' (lowercase ell) from 'I' (uppercase eye) characters. I just wasted a bunch of time trying to get my iPod Touch to connect to my secure wireless network, because besides the fact that typing is very slow on the iPod, I kept typing in the wrong password, because I was looking at the password in Keychain Access, and I thought the 'I' was an 'l'. It wasn't until I pasted the password into TextEdit that I realized the problem. Either change the default password in Keychain Access, or allow the user to change it.