Not really. They've been working the bugs out all summer. You probably hadnt noticed but during the summertime a lot of your favorite apps updated themselves with "iOS 5 capability".
Im using the GOLD MASTER version and theres no bugs that I've found. The OS runs smoothly on the 4.
Apple released iTunes 10.5 today, and you will need the latest version of iTunes to install iOS 5 and use iCloud. It’s best to make sure that you’re running the latest version of Lion on a Mac and that you’ve installed all of the available Apple updates on a Windows computer.
iCloud will be integrated in a Mac OS X Lion update and Apple Software Update on Windows that will probably be pushed out tomorrow. Make sure you install the latest updates on your desktop so that you can actually use both products.
Backup and Transfer Purchases
It’s crucial that you backup your content before you install an iOS update. Apps, music, movies, TV shows, ringtones, etc. will all get lost in the virtual ether if you don’t have an iOS backup to restore from after you download iOS 5.
When you plug in your iDevice, iTunes will automatically backup your content and iOS settings. After you install iOS 5, you should be able to restore your apps and configurations from your last backup. An iTunes prompt will come up during the iOS 5 update process.
For a big upgrade like iOS 5, we recommend starting with a clean slate. That means that your purchased content needs to be safely stored in iTunes so that you can sync it back on your device as you see fit. Right click your device in the iTunes sidebar and click the transfer purchases option to make sure you’re covered.
Organize
Now is a good time to delete some of those apps that you know you’ll never use again. Do you really need that third beer drinking game? Probably not. Clean house before a large update and you’ll thank yourself later.
There’s a nifty app organize option in the “Apps” tab of your device window in iTunes. When you get iOS 5 installed, you can organize your apps into different folders and pages from there.
Also, now would be a good time to collect your friends’ Apple ID addresses so you can iMessage with them on iOS 5. You can easily add and update contacts in Address Book on the Mac and then sync them over in iTunes later.
iCloud
iCloud allows users to seamlessly sync email, calendars, contacts, and iWork documents across your devices. Apps will use iCloud to store and sync data between your devices as well. iCloud and iTunes Match allow you to stream and download your music from any authorized device as many times as you want.
