Shoutbox

The skinning is very powerful indeed, but if we could apply even more features and things to our skins via scripting, that'd be great. For example if we want to add our own custom sounds when you sign in, type a message etc, that would be possible. And with customizable settings-windows we can provide very nice previews (just render different PNGs) so we don't have to restart Messenger in order to see how the changes should look like.

I don't believe that scripts can screwup your PC if there's not something wrong with them (scripts can slow down your PC though). This was why I suggested a lighter version of the scripting API. This could be used for so much, I think it's worth taking the risk of bad scripts (these could just get removed from the skin database anyway..).