Screenshot of version 1.0:

New User Instant Password (NUIP)

This plugin redefine function wp_new_user_notification to instantly show generated user password when new user register. Plugin may be useful when you have problems with mail function on your hosting.

Download NUIP plugin:

This plugin was tested on Wordpress 2.0.7 and Wordpress 2.1. If you have Wordpress 1.x installed please test NUIP 1.0 on it and inform me about results.