1- In Brazil (for example) there are non-explicitly metered (contractually speaking) home internet connections. I'm not sure how the heuristic works in these cases. It would be bad, of couse, if it does not work. Nowadays, when passing the limit, they slow down the connection (a lot) until the end of the month; but the internet providers are trying to charge in the future.

2- In Brazil (for example) there are still slow home internet connections (1Mbps, 2Mbps). I think the heuristic avoid downloading updates while internet is in use. Again, it would be bad user experience if it does not work.

I think I fucked up previou email, sorry.

Anyway, completing:

Heuristic is cool (and is smart).

But maybe a graphical "switch automatic updates off" and a graphical "the system is [automatically] downloading updates (77% of X MB)" would be cool, too.