You can't the best you can do is wait until openfeint let you on again depending on whether or not they actually do let you on again
OpenFeint was created on 2009-02-17.
No!
The ban was lifted in 2000.
1997
In the year of 1886.
Feint points are essentially a measure of the amount of bragging rights you have earned by playing any of the games under openfeint. They amount to little else however, as you can't do anything with them.
Absinthe
The US lifted their ban on foreign trade with Vietnam on February 3, 1994. President Clinton is the person how lifted the ban.
Yes, you can find her on openfeint her user is Debby Ryan
You can't once a ban is issued it won't lift until the given date unless if it is permanently suspended.
You can wait until the ban lifts. (in my case six months) Or you can try to appeal to their forums and tell them to lift you of your ban. Or, if you've been banned forever, then you might want to make a new account.
No, it won't because the ban is linked to your Nintendo Network ID (NNID) and not to your console. Unless you create a new NNID, you will not be unbanned (assuming that you were permanently banned.)