This is not a good sign. The influx of weapons into Gaza is likely to increase the number of attacks (and increase the chances of success of those attacks) on Israelis, and might further undermine the grip that the Palestinian Authority has on power in the area. I expect to see major fighting either among the Palestinians or against the Israelis, which would likely cause the Israeli army to enter the area to eliminate the weapons. This doesn’t look pretty, but was probably forseen by the Israeli government before the withdrawal, and may even be part of a move to expose the weakness of the PA and its uselessness at stopping terror attacks. We’ll have to see how it plays out.