1.   Both suits involve Motorola and target numerous defendants.

2.   Both suits involved an arcane accounting practice known as cost reporting, which has been at the center of widespread criminal and civil investigations in the hospital industry.

3.   If the suit against the Hilton proceeds, many of the aviators allegedly involved in the incident are expected to testify publicly for the first time.

4.   Many suits involve personal injury claims in which plaintiffs blame exposure to asbestos for cancer and other diseases.

5.   So is a separate Florida class-action suit involving flight attendants who say they are ill from second-hand smoke.

6.   The federal suit involved SEC rules that have no counterpart in Delaware law.

7.   The Houston suit involves only buyers who dealt directly with Countrywide and had no broker.

8.   The new suit does not involve any of the eight plaintiffs in the older complaint.

9.   The new suit involves physical vapor deposition technology, used in machines that apply metallic layers onto wafers from which semiconductors are made.

10.   The suit involves so-called unit of use packaging, in which the manufacturer prepackages standard quantities of a prescription drug which can be more quickly dispensed by a pharmacy.