I think it's either:
1 - hasn't been reviewed yet (each school gets thousands of applications)
2 - has been reviewded and they haven't made a decision if you should get an interview or not so they put you aside to go over your file again another date (i.e. you application is on hold)
3 - if it's Wake Forest, they may just be waiting fo ryou to call first, judging from the recent Wake Forest posts lately
4 - the decision is in the mail and you just haven't gotten it yet
If you're worried give the school a call. Most of the admissions staff are really nice and will be glad to quickly check hte status of your file.