u have jailbroken Device
take my advice
DO NOT INSTALL WINTERBOARD IN UR DEVICE
some of u gone ask them selfs why shouldnt i?
BECAUSE if u turn off and turn on ur ipad again
it will make ur ipad Slow
and it might be i said it might be!! 50% ur cydia , cydia apps and safari will not open!!
and u will,say to ur self how did i know all these?
i know it because i have this problem too bad i have to restore it so i can rejailbreak :/ soo guys!!
DO NOT INSTALL WINTER BOARD FROM NOW ON!!!
and dont add sooo many sources too ( it might be slowing down ur device )