GNU Backgammon - Plays and analyses backgammon games and matches
BGBlitz - BGBlitz2Go, a strong playing Backgammon for mobile phones
NetGammon - Play a free online Backgammon game against the computer or jump into a Quick Match.
Nextgammon - Your Ultimate Online Backgammon Destination!
BGLightCE - BGLightCE, a Free Open Source Backgammon for Windows and Windows Mobile or Pocket PC
DJ-backgammon - DJ-backgammon Alternative - So many alternatives app to DJ-backgammon that available to download out there. And, looking for a suitable application was not easy