Here are some iOS Beta issues:
- Notifications on lock screen not working.
- Weather Widget not working.
- iTunes sync + Software update options on Settings not working (for me at least).
- Take photo option from lock screen rarely working.
- Some minor WiFi issues.
- Tweetbot.app has some graphic glitches.
I am sure there are more.
In closure, it's working pretty okay, yet I 'd advice you to install it on an iPad first and see how it will go.
Notifications were a bit shaky at first for me, but have started working fine this morning (you need to make sure you turn on the options to show them on the lock screen too)
Weather widget works fine for me
iTunes Sync not available in this beta (it's in the release notes)
Update issues I guess caused by no server being available at the moment
Take photo from lock screen works fine for me
Not seen any issues with Wifi and don't use Tweetbot
For me, it seems a very stable release: I haven't found a 3rd party app that doesn't work yet.
In fact, the only issue I've found is that home sharing to the iOS device is really messed up: TV show titles don't get pulled across, thumbnails are all wrong and if you make metadata changes to an item in your iTunes library, it crashes the Music / Video app whenever you try and connect subsequently. I would say Home Sharing is so broken as to be unusable at the moment. I don't use it on my iPhone so it's not an issue, but I
do use it on my iPad so I'm not upgrading that at the moment.
One good thing that I've not seen mentioned elsewhere is that Airplay is now
enabled by default for apps, website videos, etc (previously it was disabled by default and apps / sites had to add tags to enable it)
Another nice feature which I hope isn't a bug and is there by design is that you can start the camera app without unlocking the phone but if it's locked, you can't see any of the photos from the camera app (even ones you have just taken). I was a bit concerned that the camera from the lock screen might be a security hole giving people access to all your photos, but it looks like Apple have thought about that...