[Caniel]

The folks at the referenced website have been chasing and figuring out data on the road for several years. At one time they published a book on why and wherefore different mobile technology comes in to play. What they suggest has changed with technology over the years. Looks like they found a new favorite.

Technorv has also published some info on data on the road options.

Like others have said purpose built equipment often performs better than you can also use it for built equipment.