said by iansltx:50/20 pretty much means that 80% of the population has to be covered by FTTH by 2015. Not gonna happen.
However 30/15 can be done with VDSL2 (Qwest), DOCSIS 3 (any cable company) or really high speed fixed wireless (802.11n or 802.11ac based stuff with a polling layer on top).
Lambaste me for aiming low, but 30/15 would be awesome if it was available everywhere cable covered, or everywhere the telco had a next-gen network. Which is a fair bit more than 80% of people, fortunately.
We should also have a 90% benchmark: by 2015 10/2 should be available to 905 of the population. This can be done by HSPA+, WiMAX, DOCSIS 1.1 cable and even single-line ADSL2+ with Annex M (or line-bonded ADSL2+). May not sound like a huge amount of speed but it's still good.
Oh, and 3/768 should be available to 98% of the population.
Those are some insanely low standards. You do realize bandwidth speeds in backbones increases approximately according to Moore`s Law, right?