On Monday morning Apple released the third beta of iOS 5 to developers available through the developer center. The build number of this update is 9A5259f. An updated iTunes 10.5 beta has also been released to allow syncing of devices running the new beta. The last update (beta 2) came on June 24.

This build brings with it some new features and bug fixes. Most prominent are the new Location Services options. Now, iOS prompts you to either enable or disable location services during the initial set up process on the device. Within the settings app, you now have the choice to enable or disable cell network search by location, location based diagnostics and usage, location based iAds, setting the time zone by location, finding weather forecast by location, and location based traffic. It looks like Apple is really taking the previous location data scare seriously, and giving the users a lot of control over how to share (or not to share) their location data.

A new switch has been added inside network settings, to allow you to disable Voice Roaming. The option to disable data roaming has always been available, but now you can disable voice roaming to prevent incurring extra charges from your carrier when travelling outside of the country.

The options to clear cookies and data has been added back into Safari settings, as well as an advanced menu. Here you will find options to remove website data, or enable the debugging console so developers can test their web apps and sites.

Upon first launch of the Music app, there is now a prompt which informs the user that movies, TV shows, and music videos are now stored in a separate Videos app, since the combined iPod app is no more. There is also a Store button in the upper left of the Music app which will take you directly to the iTunes Store.

One major addition to beta 3 is a new Accessibility panel. It is an upgraded version of the AssistiveTouch accessibility feature available before. It now place a tap-able dot on the homescreen and lockscreen of the iOS device, which when tapped, brings up a panel of functions that would otherwise require pressing the hardware buttons on the device. From the panel, you can do things like lock the device, lock the screen orientation, “shake” the device without physically moving it, as well as perform two, three, and four finger gestures with just a tap and a swipe. You can also program custom gestures or actions to execute when a particular gesture or drawing is made on screen. This looks promising for people with disabilities, or for those who have unfortunately broken the home button or lock button. I’ve seen some folks with arthritis that have trouble performing the pinch/spread to zoom in or out, along with the other multifinger gestures. It could also be used in demonstration applications where the iOS device is fixed inside a display and cannot be moved. 9to5mac has a video demonstrating how this new accessibility panel works.