A couple of the comments talk about speeds enabling cloud lifestyle, I would point out also that mainly hinges again on wireless.
edit: why all the downvotes? have i said anything thats wrong? how does 1gbps help you watch stuff outside one room in your home without unplugging and re-plugging all your devices? is 100mbps sufficient for viewing HD video or do you need 1gbps?
And for the record wireless is not just about mobile phones- as I said the PC is dying, it's about laptops, netbooks, ipads, tablets, internet-enabled TVs, gaming consoles, and the future IP devices (cars) etc all of which are now, today, usually connected wirelessly. And we are the better for it.
Sure, it doesn't help you download faster on your phone when not within wifi range... but if you use that argument against needing fast speeds at home, why not go back to dialup?
That's why all the downvotes.
The important part though is to have a connection that can actually utilize the full wireless speeds. Wireless has been 100mbps for a while now, but nobody can utilize that much on their lines (at least in the US)
4G and LTE are okay but nothing close to 1 gbps. We need a new wireless standard to saturate that connection.