Googledocs Revisited

I have engaged in another googledocs classroom activity. The idea was fellow teacher Lee Lowery's--& I am excited about the results. We asked our students to write contextual sentences collaboratively, using google docs. For 20 vocabulary words, students each wrote 10 sentences, editing the 10 sentences of the collaborative partner. The outcome? Actually, the number of errors was no better (perhaps they aren't great editors of each other's work) ---what WAS better is the fact that 100% of students submitted the sentences. Interesting. Was it the technology or the collaboration-- or both?--that empowered every student to submit the work?