This build is focused on fixes and improvements, mostly in editor. However we managed to stick some new features: (S)FTP Sync and server browser, Language Injection in HEREDOC literals & “Edit fragment” mode and support for PHP 5.3 late static binding language constructs and a bunch of less notable stuff. There is also significant memory/performance improvements for code inspection, especially in Batch (Code|Inspect code) runs.
Complete change-list in issue tracker.
Download Web IDE EAP build 722 for your platform from project EAP page.
-JetBrains Web IDE Team