There is no evidence there that Prosecution HID or DESTROYED evidence.
There is a claim by an ex-employee that not everything was turned over but the state doesn't have to turn over everything whether relevant or not to the defense. The things that weren't turned over can be litigated and a court can decide. My guess is it will go nowhere because the thousands of photos will have no bearing on the verdict in the case.
OMG... The defense didn't get a picture Trayvon took of a sunset. The defense didn't get a picture Trayvon took of a car. The defense didn't get a picture Trayvon took of the ocean. While one could argue the defense might have been able to show Trayvon had bad eyesight from looking at the sun while he took that picture it hardly is evidence that the prosecution hid or destroyed.