Alright, so a full-blown, Google-sanctioned version of "Google
Earth live" is still probably 10-20 years away. But at least one
company (other than Google) is pushing to make live, HD video of
Earth a reality much, much sooner than that. The company is
called UrtheCast (pronounced "Earthcast"), and according to
Google Creative Sandbox, their plan is to mount two cameras on
the International Space Station that will not only stream live
content at resolutions as low as one meter per pixel, but also
"create a video version of Google Earth with the video playback
and search functionality of YouTube." Granted, UrtheCast's two-
cam setup has its limitations. Google Earth Blog runs through a
few of them: 1) For any particular orbit, you may not be able to
view the desired location (too far over the horizon, too much of
an angle). You might a have to wait dozens of orbits to get over
that spot. 2) Daylight - you have to be over the location at the
right time of day. 3) Weather - too many variables to count a)
clouds b