from
http://mileageplusupdates.com/faq.html
" Does this change affect how I earn bonus award miles with my U.S.-based or international United MileagePlus credit card?
No. If you hold a credit card that earns MileagePlus miles, nothing is changing with how you earn those miles. For example, United MileagePlus Explorer cardmembers earn two award miles for each $1 spent on tickets purchased from United. Visit united.com for more information on our credit card partners.
"
What international Mileage Plus Credit Cards are there?
I ciould not find anything other than 'points transfer'
Can I get a US MP CC as a non-US resident (with an office address in the US)?