Late Night Software has released XSLT Tools 2.0, a scripting addition that adds XSLT and XPath support to AppleScript. It also allows extending the XSLT processor using AppleScript functions. It's based on Xerces-C 2.3 and Xalan-C 1.6. XSLT Tools is free for Mac OS X.
Bare Bones Software has released BBEdit 7.1.2. This is a free update for all 7.0 users. BBEdit is the $179 payware Macintosh text/HTML/XML/programmer's editor I normally use to write this page. This is mostly a bug fix release, with some small new features including smarter auto indentation, cancelling grep searches, and alternate ports for SFTP. Mac OS X 10.2 or later is required. Mac OS 9 is not supported.
Engage Interactive has posted DOMIT! 0.52, an open source DOM Level 1 implementation for PHP. This is a bug fix release. DOMIT! is published under the GPL.