What license did you release AppGet under? Almost every open source license at a very minimum requires that credit be given to the original authors. Arguably they are in a situation of legal liability (IANAL).
You don't strike me as the kind of person that would litigate such things, but I would like to think that if the right people at Microsoft became aware of such a liability, they might choose to give you credit (to be on the safe side).
You don't strike me as the kind of person that would litigate such things, but I would like to think that if the right people at Microsoft became aware of such a liability, they might choose to give you credit (to be on the safe side).