My neighbor died shortly after I moved here and she has this incredible variegated groundcover in her front yard. It leafs out like a strawberry plant. I'm in zone 4. Sorry the pic is a bit grainy - it's getting dark outside. :-/ Thanks!
Looks like Aegopodium. I would not recommend planting any of that in your yard. It is very aggressive and very difficult to remove. http://en.wikipedia.org/wiki/Aegopodium