Difference between Product Design and Industrial Design

Difference between Product Design and Industrial Design: jobs and $'s.
To add a quantitative perspective, a quick count of “industrial design” and “product design” job openings posted today (9/7/2010) shows about 39% more ‘Product Designer’ jobs than ‘Industrial Designer’ driven by way more entry level ($40-60K) ‘product designer’ postings. 'Industrial Design" peaks between $80-100K, with ‘Product Design’ pushing over the $120K mark.