GORDON142 Well, NTFS-3G is open-source so development and feature-set are up to the community. If people felt that Tuxera was not committing enough resources to the free version, they could easily create their own fork with a different team of developers.
Secondly, support is huge in the open-source community. Many companies base their entire business model on offering open-source software to the enterprise through lucrative support contracts. That seems to be the main point of the offering here, not creating a technically superior product separate from the free offering.
(Version 2009.12-RC)