For those of you that may be interested, here are the historical waitlist statitics for Georgia Tech:
Offered waitlist/accepted waitlist/admitted from waitlist/% admitted
2004-2005 N/A (not sure if no statistics available or no waitlist offered)
Numbers are taken from Georgia Tech's website.
I'll leave it to others that are closer to admissions to speculate about what these numbers might mean for this year's waitlist based on experience and admissions trends.