It's almost been three weeks since Apple seeded iOS 8 beta 2 to developers. This morning, the company seeded iOS 8 beta 3 to everyone with registered developer UDID's.
Apple's iOS 8 beta 2 included a few new UI tweaks and small changes in apps like iBooks, App Store, Messages, and Camera. iOS 8 beta 3 is still being skimmed through for changes, but so far a new Handoff toggle, access to iCloud Drive and new wallpapers have been found.
The third beta of iOS 8 features the build label 12a4318c, and is now available for download on iPhone, iPod Touch and iPad. Folks can update to the latest build via iTunes or OTA update.