WordPress.com Admin now in JavaScript

The WordPress.com development team has now movedĀ development of the WordPress.com CMS admin to JavaScript.
Two articles to read:

Given the pervasiveness of WordPress and the size of the development community, I believe this is a watershed moment. Arguably web developers are now officially living in a JavaScript-driven world. Might this be theĀ beginning of the end for PHP?

This chart of benefits from the WP developer article says it all. (Click to expand.)
WordPress.com advantages of new workflow
See this table listing the benefits of the new JavaScript workflow at WordPress.com.

PHP Error Messages For Designers — Smashing Magazine

PHP errors can seem very confusing if you are not a PHP developer, but if you read the error message carefully, you will usually find something that leads you to the root of the problem.

By learning to make sense of PHP error messages …

someone with no PHP knowledge can identify and fix [common problems] themselves.

via A Guide To PHP Error Messages For Designers — Smashing Coding