It's just intercepted more missiles in the last week then the previous 2 years combine.
Since there are only 4 Iron Dome Batteries operational, with a 5th that just came on line 11/17/2012, and 2 more scheduled for 2013, I always thought Hamas could overwhelm Iron Dome. It seems Hamas has tried that but Israel UAV's have been able to spot these attempts and that's where the IAF comes in. They are able to use their Air Power to bomb these attempts before any missiles are launched.
Each Iron Dome Battery cost around $37million US Dollars with the Tamir missiles around $40,000 each.
I feel this has just been a test by Hamas to see the capabilities of Iron Dome. They probably realized they lost this round days ago but are unable to stop now without loosing face. (A very important point in the Arab world.) A truce will be worked out and Hamas will re-evaluate where they must be in 2, 5, 10 years from now before they can attempt a successful attack. Of course Israel won't sit still during that time.
All just very, very sad.