On 28-Jun-08, at 11:25 AM, jtd wrote:
The point here is that mapping is a tedious affair. Shortcuts result in poor quality database which inevitably causes bitrot. Besides the copyright issues there are technical issues too - both rather difficult to solve. Make the extra effort to prevent bitrot and legal hassles. The FOSS approach is a perfect fit for GIS.
also do not forget that google imagery, in India anyway is anything from 1 to 3 years old, depending on the area.