USTVNow is legally available only to viewers outside the U.S.
To this I must say that you are incorrect. No where in the terms of service listed on the USTVNOW website does it say it is illegal to use USTVNOW in the US. USTVNOW is designed for use by overseas but not illegal for use in the US. For most people living domestically using this service is redundant due to the fact that most people can get the major networks free over the air. I merely was pointing out that this is a option for viewing live tv from within the Roku environment without have to switch inputs on the tv.
The channel app is a private channel, not available in the Roku channel store.
I am not sure why that is an important fact to bring up. Private channels are used all the time by users of the Roku. Private channels are merely not supported by Roku and Roku takes no responsibility for its content or function.
This would be true. However, the phone call I made to my friend also included him adding me as an authorized user to his account. Allowing me to make changes and modification to his services if I wanted to. This I would never do since it is technically not my house but as an authorized user on his account I can legally use his login information.