hmm, not really. Apple had the built in apps first (music, videos, safari, etc. MINUS THE APP STORE), then they were able to make an SDK (the "hackers") then installer came out as well as the SDK. Cydia is a relatively new installer application, I forgot exactly when it came out, but it was before 2.0 and the app store came out. Now there's also icy, and it's a piece of shit, I would avoid it
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