The first year of NFL license exclusivity is also the first year the Madden series moves onto a new console generation with Madden NFL 06 for Xbox
$20 and Below – Tagged Xbox – Page 49 – Retro Raven Games
Madden NFL 06 Xbox 360 Gameplay - Game on the Line
Remember Madden NFL 06 - E3 2005 - Xbox 360 Trailer
Madden NFL 07 - Game Boy Advance – Retro Raven Games
List of Xbox games - Wikipedia