TweakGuides.com posted their Assassin's Creed Tweak Guide
A quote from the article:
>> Assassin's Creed Tweak Guide
The Assassin's Creed Tweak Guide is now available and contains not only full descriptions of exactly what all the in-game settings do, but also compares DX9 to DX10 mode, details all the advanced .ini tweaking possible with the game, and provides a range of troubleshooting tips spread throughout the guide.
>> Assassin's Creed Tweak Guide