popsy, a quote from immigration.com regarding appeals.
http://www.immigration-law.com/
5/05/2004 - uscis moves to reduce RFE's.
EAD vs. H-1B Strategy for I-485 Filers: The risk of working on EAD rather than H-1B status will increase substantially under the new policy. Once I-485 is denied, the alien loses the legal status immediately if the alien worked on EAD rather than a nonimmigrant status. The agency will immediately revoke the EAD. The only recourses available will be either an appeal or a motion to reconsider or a motion to reopen. Meanwhile, those who work on H-1B will not be affected by such denial when it comes to their H-1B employment and legal status. Besides, those who work on EAD rather than a nonimmigrant status are subject to removal proceedings as they do not have any specific nonimmigrant status when the I-485 application is denied. Another important point to remember for the 7th-year H-1B extension eligible professionals: Under the current court decision, the denial of agency does not deprive them of eligibility for the 7th-year extension "if" an appeal has been filed timely. The court determined that "final decision" under the AC 21 that stops the eligibility for the 7th extension eligibility would not arrive until a final decision is made by an appellate body. It is thus likely that people will witness an increased number of appeals to seek remedy for the legal issues and to preserve their right to the 7th-year H-1B extension pending appeal.