See clip from Attorney Rajiv S. Khanna's conference call video that addresses this question.
1. The answer is it can. When you have a telecommuting job in most cases what we do is we actually get an LCA for that location. I think that is the proper method to do things. So make sure you have LCA for your home location. You can always come back on H-4 if the H-1 is denied and your husband does not have to go with you. It is not necessary to go as a family but the option of coming back on H-4 is always there.
2. We always get LCA for home location. So if your employers have not obtained LCA for you I think they might need to do an H-1B amendment depending upon the facts of your case. So before you go for visa stamping it would be a good idea to discuss it with your lawyers. In my view the safest thing is to have an LCA and that location specifically approved under the H-1 process.