It's only been two weeks since iOS 8 Beta 4, but Apple has already begun pushing out iOS 8 Beta 5 to developers. The main changes in this version are bug fixes and some tweaks that are designed to help developers prep their apps to function on the new version.
You can get the new Beta 5 download as an OTA update (if you are a registered developer) or a manual download from either the Apple developer's portal or iTunes. Of course, non-developers can try out the new version, but they should expect to have problems with their device until Apple works out all of the kinks. Sound off in this thread if you have tried it out and let us know what you think.
Supposedly, iOS 8 Beta 6 will be hitting devices as soon as August 15th. We are counting down the days until we see this on the next version of the iPhone!