I too am on an H1-B, and as far as I know, what you say is true. Once your I-485 has been approved for a period of 6 months or longer, you can move companies, t

I too am on an H1-B, and as far as I know, what you say is true. Once your I-485 has been approved for a period of 6 months or longer, you can move companies, though from what I hear, it raises a few questions when it comes for the INS to finally approve your petition.