I have that IP in my logs:
Site 1: Last 2 days, 16 pages viewed independently (not surfed from page to page, just picked out)
Site 2: Last 2 days, 3 pages viewed independently
Site 3: Last 3 days, 27 pages viewed independently
In all 3 cases, the pages were viewed and then the next hit was many hours later to a different page.
Strange pattern.