If you want to have the same site on an US hosting you'll have to change the content, because you'll be penalized.
But I've never heared that Google dropped from .com version sites that are not hosted in US. For example, I know a lot of sites hosted outsite of US but they are listed in google.com.
May be there are other reasons of dropping?
LinkBack URL
About LinkBacks
about the above so if
I haven't done anything but I checked Google US again today for
Bookmarks