Kind of a major bug in beta 2. Bear with me cause it's a little tough to explain. I was playing music with aol radio and the phone went to sleep. When I woke it up all the apps in the black area almost reacted like minimizing in OS X down to the dock but went behind the dock and when I tried to take a screenshot of it to show you guys but it just locked and once it was unlocked after 2 -3 times the apps were then not visible at all. Then after I locked and unlocked a few more times they were spaced out so much that the bottom row wasn't visible and in spotlight the search bar was too high but visible. I opened apps and they were fine and seemed to appear like normal. So I did a hard reset which took a while to boot up and it is fine now but definitely something I don't want to keep dealing with. I will be reporting this and every other dev should especially if they experience it.
Bluedrib was able to get some screenshots
here