The update to the 2.3 version of WordPress is now available for download, containing fixes to the previous release. Interestingly, load order for the JavaScript libraries Prototype and JQuery are fixed to prevent compatibility issues, which brings me to my point — why use both libraries?

Prototype and JQuery are not small code libraries, and in a way are frameworks for simplifying client–side scripting. However, many of their uses can be achieved utilizing either of the two libraries, so the need to use them both simultaneously is rather redundant, and may be unnecessary. I think in the next major releases of WordPress, one of these two will be left out.