Jason left a comment asking about the opening date for the mall.  If you go to the Hill Country Galleria Mall website, you will see that the site, just like the mall, is still under construction.  From what I have heard, the theater will be the fist thing to open.  I don't have any dates for the opening of the theater or anything else.  Initially, the developer was talking about stores opening in July, 2007.  Looking at the how construction is progressing, my best guess is about a year from now.