The maintainers of Cydia's most accessed repo recommend avoiding jailbreak using evasi0n7

  The launch of the solution untethered jailbreak evasi0n7 without the collaboration with the developers of tweakand applications for Cydia generated a lot of discussions and problems within the jailbreak community, and an announcement made today does nothing but generate even more controversy. The maintainers of the most accessed repo of Cydia, BigBoss, states that users should wait at least 2 weeks before doing so jailbreak for iOS 7 using evasi0n7 because tweaks and applications are not yet compatible with them.

  The statement will certainly make many users postpone the use, at least for now evasi0n7 and I recommend you to follow it if you don't want any trouble. For now the tweaks and applications for Cydia they are updated with difficulty by the developers because we are talking about a time of the year when people are looking for vacation and not work, so patience is the best solution in this case. In this article I have presented the updated packages to be compatible with evasi0n7 and iOS 7 and I recommend you to follow that page.