I need some help regarding my H1B transfer. I'm presently employed with Company A in India and they filed a H1B for the FY 10-11. As per the current status on the USCIS website it is approved and i'm awaiting the physical copy of the Approval notice. Now i have got a offer from company B and they are willing to do a H1B transfer of the approved petition. Now my question is that
1. Is it possible to do a H1B transfer without approval notice. I only have the filing receipt number issued by USCIS at the time of filing the visa.
2. Company B is willing to send me on a B1. Will i enjoy any previliges more than H1 while on a B1 though the stay is limited to 90 days.