First you need to mention where you are exactly. Internet service over satellite is usually sold through local providers. Furthermore, different satellites have different coverage areas.

Second, if you want high speed broadband, you will need a Ku/Ka band (small antennas) satellite terminal. The problem is that in South America, it is more common to use C band (big antennas) satellite terminals that are slower than Ku band since the spectral bandwidth is smaller and more expensive.

Third, the latency is basically the same for all Geostationary satellites and in practical terms is about 250ms from the transmission latency and 150ms for the latency of the entire transmission chain. As systems improve, this latency gets reduced but the transmission latency only depends on the relative position of the terminal to the satellite and the speed of light.

Forth, above 70C latitude it is not possible to provide Internet over satellite with geostationary orbit since there isn't enough visibility of the satellite on the horizon.

This is old news!
The Dedicated short-range communications (DSRC) is a set of protocols and standards for vehicle-to-vehicle and vehicle to infrastructure communications.
The lower layers in the protocol stack are defined by the 802.11p standard, which is a modified version for the 802.11a for vehicular environments and it operates in the 5.9 GHz band.
The higher layers are defined by the Wireless Access in Vehicular Environments (WAVE) stack, for messaging and control, and the IPv6 stack for applications and services.


There are already commercial DSRC radios and lots applications have been developed in the ITS research community. For instance, the See-Through System: an overtaking assistance system http://www.youtube.com/watch?v=Esh1EjgBQaI

slashdotted already?

Any mirror or a proper link?

There are two possible technologies (among other similar ones)

With DVB-S2/RCS you have a bidirectional satellite system that requires a 1.2 meter dish antenna and a satellite terminal composed of an indoor unit (about the size of a bulky cable-modem) and an outdoor unit (transmitter and receiver horn mounted on the focus point of the satellite dish. This costs around US$1000 dollars and it takes about 30min to install (if you are an experienced installer).

With BGAN you have a very portable terminal (about the size of a netbook) that only requires you to point it in the general vicinity of the satellite location in the horizon.

Both systems use GEO (geostationary) satellites, which means that they have a fixed location in the horizon. They are actually located over the equator (0Â latitude) and they orbit the earth in 24h cycles, thus appearing to be stationary.
With DVB-S2/RCS you can have a 50Mbit/s in the downlink, although most services provide less than 10Mbit/s. The usually upload speed is 1Mbit/s. This speeds are shared between all terminals within a beam (similar to Internet over cable, where you share your Internet within a residential area of about 1000 persons).
With BGAN you only have 492Kbit/s in both the downlink and uplink. On the other hand, it is designed for mobility.

"It is common to argue that intellectual property in the form of copyright and patent is necessary for the innovation and creation of ideas and inventions such as machines, drugs, computer software, books, music, literature and movies. In fact intellectual property is not like ordinary property at all, but constitutes a government grant of a costly and dangerous private monopoly over ideas. We show through theory and example that intellectual monopoly is not necessary for innovation and as a practical matter is damaging to growth, prosperity and liberty."

http://levine.sscnet.ucla.edu/general/intellectual/againstnew.htm