I was thinking more like the remnants of our advanced future being ubiquitous even in the dust bowl of District 12 like a hundred-year-old crumbling wall, coated in graffiti that still plays streaming videos from the Capitol (albeit VERY faded, like a projection in daylight).  I mean, the way their world is living in doesn't seem very congruent to me, it's not enough that the Capitol has more advanced tech, their relationship with it should be very different: the Subjects would use everything they can to survive, they'd repair, rebuild, customize, anything they can get their hands on they'd modify, their clothes would be hand-me-downs or handmade (I figure the Capitol would give every Subject a basic outfit like you'd see in the soviet union or the army but you'd be ostracized in your society if you actually WORE it).

The design seemed way too "1984" for me.  I feel like it should have been more Firefly.

Oh, and side issue: if they have a Hunger Games EVERY year for 75 years, why aren't there PERMANENT screens set up everywhere?