A long awaited Prototype cheat sheet - a full reference to a bleeding edge 1.6.0.2 is finally here. I had no experience creating something like this before, so any bugs or suggestions are very much appreciated. Couple of notes about notations:

• Modules are sorted in a somewhat logical order - those commonly used are mostly in the left/center area, while deprecated/utility methods are all the way to the right
• Method can be recognized by parentheses following it (anything that doesn’t have ones is a property)
• Deprecated items are marked red and have NO parentheses/arguments specified
• Prototype extends quite few native objects’ prototypes with a set of convenient methods. In such cases there’s an explicit note about it next to a module name - i.g. stripScripts() method from “String (String.prototype)” can be called as 'foo'.stripScripts()
• When a module is also a class, there’s a “(constructor)” note next to it - i.g. “Hash (constructor)” means that it should be called as new Hash()
• There are few bonus items (such as those from Prototype.Browser) which are not yet included in documentation

Download and Enjoy!

Update:

I have managed to choose the most retarded format for the cheat sheet - almost squared - which was impossible to print or navigate.
Sincere apologies.

There is an updated version at the same address which also fixes few other annoyances:

• Ajax.Responders is now a separate section
• Added missing Event.fire
• Added Prototype.BrowserFeatures.XPath
• Added simple “Dimensions/Offsets” diagram
• Minor rearrangements