I had the same experience. They never told me that I didn't get the job. I ended up calling them a few weeks after my last interview and they actually lied and said, "Well, we left a message on your voicemail." No, they didn't. I checked my cell phone and there were no missed calls and no voicemails. I also have (a gmail) email account, and they didn't email me.

When asked why they weren't interested (so I could work on whatever was the problem), they wouldn't tell me. They said it was proprietary information. I can only guess that was because of my salary requirements, since nothing else makes any sense. But it was really crappy of them. Then they continued to call or email me every 3 months for the next 3 years asking me to come in for more interviews. No thanks!

I was also disappointed to see their offices. (I'm in SoCal.) Everyone had open cubes! Ack! Not even walls around their office space. Do not want!