Link's sister now has a name and no its not Zelda. Link's sibling's name is called Arill.
If you need the Link (pun intended) here it is:
Hands-On Zelda
Its in there somewhere. A little more than halfway through.
It also seems that mini-games can be downloaded into the GBA. It doesn't say whether you'll need the LttP GBA port or not although I think not.