Apple store online shipping question

[Harmush]

I've just ordered a new MacBook pro 15inch i7 with the hi res screen.
It's been 3 working days just like they said and it has been shipped. But my tracker info just says

In transit to final destination - carrier details to be updated shortly.

What does this mean and how long should I expect it in?

Any advice?

 

[DeusInvictus7]

On a normal basis, it takes about 4 days to a week from the date it shipped to arrive at your doorstep.

If it just shipped, then it'll still take up to a day for the courier to update the online tracking.