I'm a non-US citizen who would like to get a credit card from the US for iTunes Store US purchases.
Up until now I've been purchasing iTunes Gift Cards from Apple Store US but now it seems that they also require a US credit card.
Is there any way of getting any kind of a US credit card outside the US without a US citizenship or address? I've also heard that UPS provides PMBs(private mail box). Is it also possible for non-US citizens? If so, could this help me for a US credit card?
Or is there any other way?