WS-BPEL 2.0 Committee Specification
As promised, the editable version (DOC) is available here: https://www.oasis-open.org/committees/download.php/22264/wsbpel-v2.0-CS01.doc
The XHTML version is here (zipped): https://www.oasis-open.org/committees/download.php/22320/wsbpel-v2.0-CS01.html.zip
WS-BPEL 2.0 schemas are here (zipped): https://www.oasis-open.org/committees/download.php/22269/wsbpel-v2.0-CS01-xsd.zip