Yup. I had a similar experience in college when I applied for an internship at Facebook, got back an enthusiastic-sounding response asking me for my availability for a phone screen, and then the recruiter dropped off the face of the earth and never responded to me again.
I agreed to a job offer from a company, and by the Friday before I was to start, I hadn't heard from them on where exactly I was supposed to show up on Monday morning. I emailed them about it, and they replied, "Oh, oops, we neglected to inform you that we restructured our existing staff and don't need you any more."
