622 Mbps is impressive for a spaceborne data link, but I don't believe this was a new record set in October 2013. The NASA ACTS satellite, designed in the late 1980s and launched in the early 1990s had a maximum user data rate of 622 Mbps.
Let hope they do better than one bright manager at my employer. He set up a high speed optical link between tow buildings. It worked great until one winter morning when there was a heavy fog. That's why he was a manager I guess :-)
Yes! There is a need to have a global reach high speed internet on earth first.
But let NASA not worry about it. Let them fly to outer space and establish such technologies . NASA is definitely aiming for the future colonies in space where such interplanetary internet would become a handy communication medium.
There already is a way to get broadband to homes in the boondocks, though. You can do it with satellite, and it's commercially available already. My long-time colleague at work retired to Western Pennsylvania where that was his only option.
The main problem with satellite broadband is latency. But it does work and can be used in low population density settings.
There are also many wireless ISPs available in parts of the country.