I just Updated to 2.2.1 and it updated successfully. I didnt back up so most of my apps are gone. I had poof before so lot of my apps are hidden and i cant access them because when i jailbroke 2.2.1 i was going to go into cydia to download BossPrefs and get my apps back from its hidden mode. So when i tried to go in cidya, i got the message "Could not activate cellular network". Ive read all the other posts regarding the "network loss" but there isnt a problem similar to mine. Could it be the jailbreak? or is it a network problem? (p.s. network worked fine before update. Im in Eagle PAss, no 3G just EDGE. and my Edge icon is visible. I reset network setting, rebooted and still nothing. ) Thanks in advanced! UPDATE: People in Texas might be experiencing similarities! Just found out its a network issue!