i don't think it was there before either! now we need to check a cache to see if its there! maybe the wayback machine will know.
Yahoo!'s still using some of Google's results, so wherever you see a cache; its from the Google database, wherever theres no cache; its from Ink's. I figured it out, good way to differentiate :D
Actually you are wrong. the cache in some parts of yahoo is way older than google.