AutoTravel is a pretty cool mod

    http://www.curse-gaming.com/mod.php?addid=999


However, as of v1.6, it doens't work:

    http://www.petitiononline.com/wowmfpet/petition.html

The community spoke out, but Blizzard said they definitely want to kill it:

    http://www.worldofwar.net/shredder/index.php?seite=kobold&&pid=40422


However, v1.6 doesn't break most scripts.  This is accomplished by requiring the user to press a
physical key for every turn:

    http://vnboards.ign.com/WoW_UI_Customization/b22852/88919330/?5


However, this is fairly easily circumvented using the free tool "AutoIt":

    http://www.autoitscript.com/autoit3/index.php

AutoIt is quite capable, and still fully compatible with WoW:

    http://www.stevefishwick.co.uk/steve/blog/index.php?p=44



And of course, the need was obvious, and someone stepped up.

    http://www.curse-gaming.com/mod.php?addid=1634
    http://www.curse-gaming.com/mod.php?addid=1623

Obviously, Blizzard doesn't like it, but what more can they do?

    http://forums.worldofwarcraft.com/thread.aspx?fn=wow-general&t=4080295&p=1&tmp=1#post4080295
    http://forums.worldofwarcraft.com/thread.aspx?FN=wow-interface-customization&T=184033&P=2#post184396

This functionality now makes it easier to bot from within Lua (eg. not hardcore botting, but more
botting than was done in v1.5)