PS3 120GB selling out?

[GripnRip]

I noticed in a lot of the stores in my area (Austin) this weekend that they almost all were out of the 120GB PS3s.  Has anyone else noticed this in their areas?  Are there actual shortages on the 120s?  Do you think this will hinder the amount the PS3 can sell if people only see the $350 250GB unit in stores?