iPad just comes up with the Apple logo, is it bricked?

OK... hold on... hope you haven't restored it yet.

You need to connect it to your PC and run redsn0w. After you select your firmware IPSW file choose "just boot tethered now." That should boot you back up.

Remember the jailbreak is tethered... you cannot reboot the iPad without using redsn0w right now.

Michael