Windows Mobile has not had the ability to handle OOXML-based documents until now.
This might make 2 applications which are built from the same codebase and properly support a derivate of OOXML. Both applications come from the same company, to whom OOXML is "a simple matter of (its) commercial interests", according to its own manager.
This is a real problem and most certainly a big problem because when people try to find real information about security and GNU/Linux they instead read "word salads" made by bots
