Ditto. I know for a fact that a very small amount of coolant is making its way into my oil, not because I can see it in the oil (although I do see the coolant level dropping slowly) but because an oil analysis from Blackstone showed "trace amounts" of antifreeze (0.26% after 5,000 miles). They said that this amount was not high enough to be a problem, but they added that the longer the antifreeze is in the oil the more chance it has to damage the bearings.

Like Shertex, I'd be curious to hear what sort of risk one runs by allowing a very minor internal coolant leak to persist.