Since most things should be in python in 2.5, it should be accessible somewhere to be attached to the other script, but more than that I do not know, I agree it's needed though :)
haha a real dirty trick !! :D with some manual twicking it's a solid workaround :) When you use smart project there is an option names "island margin" which would be perfect with normal unwrap... but it doesn't show up. is there a script anywhere? but I use this trick until there is a proper solution. Thanks :)