It is universal but people have found that there aren't as many southern hemisphere objects programmed in as there is northern ones. You can still identify bright stars its just a bit lacking in the deep sky dept.
There have also been problems with dud ones - some seem to work brilliantly and others just don't seem to go. Seems to be the luck of the draw. But hopefully they've fixed it now, too.
My info is a few years old now, perhaps someone else has something more up to date.
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