What's new in iOS 5

1. Chinese input.

That's added value for Chinese users like me. It's smarter than its predecessor, but a little bit slower.

2. Notification center

This thing works as a double-edged sword. On one hand, you just love how all your push notifications being aggregated into one page, on the other hand, it's a battery killer! Every few minutes, you'll get a notification from your email, SMS, Calendar, IMs, etc. So to save battery, you might not wanna put push notifications active for a lot of apps.

3. Photo editing

It doesn't do much magic, just crop, auto-enhance and red-eye reduction. Compared to what Android can do, this is just like nothing.

4. Twitter built-in

Now you can post tweets inside photos

5. Reminder

This could come in handy when you think you might forget something yet not considering it as worthy of putting in the calendar.

6. Reader in Safari

7. Dictionary

Double clicking on a word doesn't only give copy and paste, it also gives a "Define" option, which is a dictionary

When you hit it, it'll be something like this

8. iCloud

This is the killer update in iOS 5, but it seems Apple hasn't turned on the service yet, even though I had iCloud installed on my Mac, I don't see any syncing between the phone and mac.

9. iMessage