Yeah, I’ve implemented OTP before, and I can think of no way this could be a surveillance move. If they required you use their app because they use a custom solution, sure, maybe, but they’re OTP is currently entirely standard, so you can use a plethora of app (or roll your own in about 14 lines of Python)
I probably have about 3-4 hours remaining on Tales of Xillia on the PS3. I’ve really enjoyed this one (this is my 4th or 5th Tales game, AFAIR). Hoping to finish before the week (weekend?) is up.