Remember the story about Corel assimilating to Microsoft after a 'special' deal and watch how Novell is moving to .NET (Mono), as well. Both of them happen to support Microsoft's OOXML. That's just what happens when one becomes a Microsoft partner. The folks from Redmond pay competitors to turn them into allies.
While it's not clear how the timeline fares, this new report and mention of Turbolinux stood out
IE7Pro is an add-on for Internet Explorer, not a browser replacement. It's the work of a "virtual" firm, a team of programmers spread around the world and ironically headed by Faniel Fang, a former team leader at open sauce firm TurboLinux.
Compared to other similar products, E-Type 6 is under 1MB in size and supports both OpenDocument and PDF, along with RTF and text files.