Frameworks, on the site at least, means any pile of code that can be used on iOS. It's definitely a misnomer, but it fits well enough with what people search for. I'm sure you had the same issue when deciding on a name for cocoacontrols.com.
It's hard to say what differentiates the sites. They definitely serve the same niche.
Actually, I only publish UI-centric projects (hence 'controls'). It's a forcing function for me to scope what content gets published. I've actually had to reject quite a bit of cool stuff as a result.
edit: also, I intended to say 'here are a couple pieces of feedback for you' in my original post. Re-reading it just now, I realize that it comes across as a bit rude. Not my intention at all. My bad :)