When connected to a domain the Windows 7 welcome screen displays the last logged in user and Other User which allows you type a username and password.
I want the same functionality on a machine not connected to a domain. You are unable to Ctrl Alt Del to get a classic login prompt (unlike XP) so the Other User option is the only option which suits our situation.
I have tried modifying the local security policy to hide the last logged in user which reverts to a classic login screen which would be fine but only if it defaulted the username.
I believe Windows Vista has the same functionality.