This is the first time I have seen this, but then again I am fairly new in the jailbreaking world. I installed the latest blackra1n earlier today without any issues (at first), and then I had the wifi issue, and before simply resetting network defaults, I just recovered from back up and then reinstalled the new blackra1n again. However this time my Cydia icon doesn't show up. Blackra1n icon is still present, and I can go back in and check the sn0w and cydia applications to install, but still Cydia icon doesn't show up. I tried cydia by itself - still no dice. Rebooted a couple times to see if it would show up - nothing. I'd appreciate any help - Thanks.