Current situation:
me: U.S. citizen
my mother: green card holder staying with me
my father: B2 visa staying with me
Applicat: my sister and nephew B2 application in Beijing in early october 2010
Result: easily get B2 visa, multiple entries.Valid one year.
Here thanks Pjiang, 8 Teacher and other supportors, without their support and patient QA, our experience will be much different. Regards!