With Error 80710A06
Update 2 - 25/04/2011
" The FBI has issued 40 arrest warrants for members of the Anonymous group in America, for attacking the PSN network and leaking security info on PS3 such as user's credit card number. Some of the Anonymous members are already in custody in UK. "
Update 1 -23/04/2011
Sony have now confirmed that there was an "external intrusion" and they have turned off PSN "in order to conduct a thorough investigation and to verify the smooth and secure operation of our network services going forward"
PSN is down currently for some unknown reason
Attempting to sign in throws a 80710A06 error
Sony have indicated it may not be fixed until Tuesday