Moments ago, Apple has seeded iOS 5 beta 5 to developers. Apart from that, Apple has also released iTunes 10.5 beta 5 for both Windows and Mac. If you have happened to have downloaded and restored your device to iOS 5 beta 5 just now, you are going to need iTunes 10.5 beta 5 for your Windows or Mac in order to sync your device with it, as iTunes 10.5 b4 won’t sync with it.
If you are doing a OTA software update from iOS 5 beta 4 to iOS 5 beta 5, you will have to re-sync your photos with iTunes once you download the latest pre-release beta of iTunes 10.5.
If you are a registered developer with Apple, you can update to iTunes 10.5 beta 5 right now by simply going to the developers portal and downloading iTunes 10.5 beta 5 for your Windows or Mac from there. However, if you are not a developer and still want to get iTunes 10.5 beta 5, our friends are uploading iTunes 10.5 beta 5 on upload sites just for you. Links will be added as soon as the upload finishes.
Download iTunes 10.5 beta 5 for Windows and Mac