I installed XCode 4.4 on my Snow Leopard machine, but I have a lot of NSLog output, which is just literally freezing up my development with constant beachballs. It's completely unusable, in my opinion, see this open radar 11972490
Is there any way to rollback to XCode 4.3? Will it have consequences on my projects?
To roll Xcode back to a previous version just login to the developer portal and download the particular version of Xcode you want here
Unless you've decided to implement some of the new objective-c features then you should be fine to roll back to 4.3.