I have an iPhone 4 and i have iOS 4.3.3 installed on it right now. I'm planning on upgrading to iOS 5 soon but i'd like to know if the upgrade would give me significant changes on performance or if it's just going to be very minor new features. What are the features in iOS 5 and how will it make my iPhone 4 way better?
Thanks.
 These are the new features that are available when you upgrade your ios 4.3.3 to ios 5:
Notification Center – All your alerts (like new email, texts, friend requests) will be in one place.
Imessage – With Imessage, you can send unlimited text messages, photos, videos, locations and contacts via WiFi or 3G from your iPhone to iPad, iPod or iPhone to anyone.
Newsstand – It is a folder that lets you access your favorite publications quickly and easily.
Reminders – It lets you organize your life in to-do lists – complete with due dates and locations.
Twitter – Ios 5 makes you easier to tweet from your iPhone.
Photo Editing – You can crop, rotate, enhance and remove red-eye without leaving the Photos app and organize your photos in albums.
Other features are:
wireless setup and activation
icloud
WiFi sync
Facetime (requires a WiFi connection)vga/hdmi outlook.exehdr (high dynamic range) photos
Sad to tell you, iPhone with ios 5 are slower than the version that you have.
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If you will upgrade your IPhone to iOS 5 there will be a lot of features that you will acquire. iOS 5 will give you more than 200 new features. New features about Notification center, imessage, Newsstatand, Reminders, Twitter, Camera, Photos, Safari Pc Free, and other more features.
Notification center- You can keep track of all your text messages, emails and more in one location which will give you convenient.
iMessage- With the new features of iMessage you can now send unlimited text messages through internet using WiFi. You can do group messaging. You can some someone who types. Don’t worry about messaging important data because iOS5 will give you secure encryption messaging.
Newsstand- Application that lets you organize your news papers and magazines. You can get straight forward to your news papers and magazines by using Newsstand. Â It will keeps you subscription in one location.
 Reminders- Reminders now works with outlook and iCloud. So if you make changes, it will update automatically on all your devices.
Twitter- using iOS 5 Let’s you tweet easier. Just sign in and you can now directly tweet from safari. If you want to reply@ or you want to mention a friend, just type the name from your contact and iOS 5 will get the username and profile picture from your contact.
Camera new Features- It’s now easy to open camera using iOS 5 right from the lock screen, it’s very useful when you want to capture an unexpected moment that you need to open quickly your camera and take a shot.
Photos- You can now crop, rotate or even remove red eye with iOS 5.
There’s a lot of new features of using iOS 5 that will give you more satisfaction.
