I have reviewed the recent lawsuit settlement where the USCIS has agreed to consider H-4 holders to be eligible to continue working while their timely filed EAD extension is pending. Unfortunately, the settlement seems to state that the right to work is only co-extensive with your I-94 duration. Therefore, you do not have the right to continue working for 180 days; only till your I-94 expires. While it is better than nothing, the settlement is not everything that we would like to see.
Radio Show Discussing Overview of the new I-140 EAD Regulations
Discussing I-140 EAD FAQ in community conference call
H-4 EAD rule, click here for Rajiv's blog entry on H-4 EAD and related FAQs. Scroll down for latest updates.
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This entry is now old law. The new law is at http://www.immigration.com/blogs/i-140-ead-regulations-effective-17-jan…
Note: Updated all of the regulations comments on 31 December 2015. I will keep adding, as needed.

I have finished my first review of H-4 EAD Regulations (effective 26 May 2015). Here are the takeaway points: