I just read two DA reviews. Both mentioned that spies can sabotage a planet, but mentioned nothing about stealing technology.

So, will DA spies be able to steal techs, or are they limited to blowing up factories?

Other ideas - How about the ability to cause polical unrest or to steal credits or valueable assets of another civ (that can be cashed in for credits)

But at the very least, they should have the ability to steal a specific tech (or at least "grab and run")

While I'm on a roll..

I'd like to see ships have a special ability that allows them to cature enemy ships rather than just destroy them.

...Or the aformentioned spies could be used to cause a mutiny on a enemy ship and join the spies civ.