Actually the functionality itself is available in Creo 2.0:
But it requires additional license, as Ben pointed out; there also needs to be UG NX installed on the same machine as Creo, because PTC uses some .dll from NX installation (probably due to some licensing issues).
But you're right - it's not open directly, since this functionality was introduced in Creo 3.0, in Creo 2.0 it's still "simple" import function.