It's not called "Google Creep". It's called "Competition." You may have heard of it. It's part of capitalism.
It's not like an online calendar is not an obvious idea or anything. For pete's sake.
No it's still google creep and when the big boys see what you're doing and like it...you pray they buy you out for big bucks. If they choose to compete with you...you generally lose. M$ does it, IBM does it, and now google.