With permission, I updated BiggD’s fantastic roster update for the Xbox 360 version of NBA Live 10. It is pretty accurate, with the Dwight Howard trade and other major moves accounted for as of yesterday. Please note that I did not add any extra rookies, as there are plenty missing, but overall the roster gets the job done. After talking with BiggD about it, he does have a roster ready to go, but is mulling over releasing it until later, so this should hold you over until a better roster is released by him.
To get the roster, you need to add me on Xbox Live, Gamertag JaoSming, and download the roster from my EA Locker. Please remove me as a friend after you download it so others can download the roster without me removing people from my friends list. You can see the direct process on how to download the roster below, as well as a full game playthrough of the updated Heat and Lakers starters going at it (while I rant in a sick voice about Live 13 and other topics).
Feel free to give feedback in the comments below and in this Forum thread, and remember to thank BiggD for this amazing roster for a three year old game with no external editor!