Assassin's Creed Rearmed Hints for iPhone/iPad
It's worth signing up to uPlay (it's free) http://uplay.ubi.com/en-US/ to get the unique equipment belt which you will find useful during the game.
Smoke bombs are good for helping you escape immediately after you've assassinated your target or accidentally killed a civilian.
Only activate your special abilities like disguise when you're certain your pursuer can't see you.
Don't run until you have assisinated your target otherwise you will attract attention to yourself and be discovered.