Electrically powered walls.
Mods introducing new content into the game.
New ways to deal with enemies, be it attack or defense.
I find that this is a really nice way to do the forecfield layout. Any chance of a 1.1 update?
I made an update: http://mods.factorio.com/mod/Stormwall
edit: fixed link
Typo in the link, but thanks :)
Will do crash reports as I find them in there :)