First: Cool idea.
> Minimum investments from $1,000-$5,000.
Hmm ... imho that's too much for 'casual for the fun investing'. I'd be willing to 'invest' $250 into some cool idea just because I like it. But $1k is over my pain barrier for mindlessly throwing money at stuff and most probably lose it.
Also are there already startups signed up? I can't find a way to browse active projects.