Bukkit

Seamless Flight integrates flying into game play such that you normally would not need to type a command to start flying. It features three different speed modes, the slowest being creative fly. Lift off and switch between modes with use of hitting and then holding the sneak-key repeatedly or tapping it shortly. Normal sneaking is still possible, you can enable and disable flying by a command, such that it will or will not be available.

This plugin has just been split off a server core and might still contain bugs.

Fridays plugin ! (almost)

For reference also on planned features see the "lists" file.

Source code at GitHub: https://github.com/asofold/SeamlessFlight