The hackers left a message on the hacked website warning Israel to Stop violence again Ghaza.Compete deface message can be found below.
“Don’t Panic Israel ! These are just some Bombs of The Resistence ^_^ Muslims are Everywhere ^_^ Alkhilafah is Coming Soon Insha’Allah ^_^”
See Also: Exclusive Interview with Mauritania Attacker
Complete list of hacks can be found here.
Update: another list of hacks posted by the hacker can be found here.