Ok got my tablet unlocked. =) The phone method does work, if you have patience. Free and worked with my ATT Sim, saw 4G too. =) While I plan only to use my TMO one, least its good to know I can now use my ATT if needed.
~Battlez-avec la Mystique?~
Galaxy S4 (At&t) - Stock 4.3 Rooted
Dell Streak 7 - Streakdroid R8
Ouya - (and my review)