Registered developer, have installed ios7b2 on both an iphone4, and an ipad2. Once I worked through some huge problems with iphoto on the ip4, only significant remaining issue is keyboard lag in iMessage. Anyone else experiencing this? Tried off/back on, and hard reset. When I send messages from the device, they do go out. Just the keyboard lag issue. I did do a search and could not find anything helpful. Thought I would ask on here before I try to report through the developers forum. Thanks.