Or, you know, you could ask users if they want to download it :-). It seems to be done as a demo right now. Why not just add a big red "click here for a demo"

Or, you know, you could ask users if they want to download it :-). It seems to be done as a demo right now. Why not just add a big red "click here for a demo" thing? There are very few things that you can reliably find out over the web. Whether or not a connection is metered isn't one of them.