I have finally finished the beta version of LuaDevKit R2, it doesnt quite include all the features the full thing will, most notably the lack of the XML syntax highlighting.

Find out more here:
http://www.pspro.co.uk/forums/index.php?page=7

Note, please Digg it!:
http://digg.com/programming/LuaDevKit_R2_Beta_Released