death2twinkys-I haven't seen any legal dafintion of "concealed" in the laws."Open carry" is simply refered to as "carried openly on the hip" in the laws.Thus being legally vague, and from what I've heard, that laves the definition of both up to the individual officer you may come in contact with, and then the individual judge you see, if charged.
Jguy101-Oregon does not recognize ANY other state's permits (unless it's changed pretty recently), but those in states that border Oregon can apply for a non-resident permit, but the permit is "may issue" for them, but "shall issue" for residents.