[silvestre]

It's the fork developed by the original author. He transfered the main repository to another contributor for maintaining and then open-source drama ensued.

I don't think they've diverged enough to recommend one over the other. I'm using Origin.

[tuananh]

i think the original author doesn't want to take such big responsibility. it's a hobby for him only. he only works on it for fun so he transfer to another, forked it and add features as he sees fit.