Well, it's probably much simpler. And it relies on fsevents to do the pushes. But, aside for that, what issues are people having with sparkleshare?

Lack of windows support and the difficulty to install the server side components are the two ones that I've heard a lot of complaints about.

SparkleShare doesn't require any special server side parts: just git-core, which may be easy or hard to set up depending on your sysadmin skills.

We plan to address those issues, namely cross-platform support and easy install, and of course striving to keep things as simple as possible.