Total_Noob has left the scene, tn-v is closed source. Noone will do it. At best you can get ARK if a kexploit is released. As i think using XMB on Vita for PSP games is the best thing ever, one of my vitas will stay at 3.18. This is unless a way to port ePSP's files to 3.60 will be a possibility. Right now, it can't go past the update check.