Guys, since the devs are near to the jailbreak, sony had released the firmware 4.20. Don't get trolled so easily. There's nothing in that firmware that dramatic. It's just a minor change about which most of us even don't care. Once you upfrade , you'll have a hard time downgrading. So, have patience and wait. That's what I learnt from this blog.
http://gadgetneed.blogspot.com/2012/...-it-worth.html