Burning Midnight by Will McIntosh
My rating: 4 of 5 stars
I liked the world created here: very similar to our own with one major twist, the colored balls that grant "superpowers" (or merely "enhanced abilities"). Where it fell apart a little was understanding exactly what the balls were, and if you needed two of them to get the enhancement (it seemed like it, but sometimes it seemed like one was all you needed - maybe something that will be solved in the finished product). Still, teens probably won't care about those niggly things.
ARC provided by publisher.