The new iPhone OS came out a couple of days ago, and for some reason, most people are talking about the really boring copy-and-paste feature which barely anybody ever uses on the go. For me personally the most significant feature of this new OS is the official support for Arabic. Not only can the iPhone now read and write Arabic text, but you can set the whole OS to use Arabic as the system language.
I use the iPhone OS 3.0 on my iPod Touch. The only major difference between the iPhone and the iPod Touch is the iPhone has a sim card and a built-in camera while the iPod Touch does not.
In order to set the system language to Arabic you have to go through Settings>General>International and from there pick Arabic as the language of the system. You can use an Arabic Keyboard without changing the system language by going through Setting>General>Keyboard Layout and check Arabic. That would let you switch the keyboard to Arabic at any time.

Once you set the Language ot Arabic the system will restart into Arabic. All the default applications, except Safari and Mail, use Arabic names:

I don’t have access to a wifi network when I was writing this, so I can’t show you how the browser works in Arabic, but I have a random Arabic email in my inbox from a random stupid girl who spams me with forwards sent to an account I use for sending website newsletters. Anyway, you can see Arabic in mail here:

(Of course I did not forward the stupid message, I’d rather go to hell).
The Arabic keyboard is very similar to the PC layout with some changes in the lower row to fit all the letters:

The coolest thing though, in my opinion, is how the music library uses the Arabic alphabet to sort the music and then follows it with English. I rewrote the name of a single song in Arabic to see how it looks like:

All the song meta data appears in Arabic during playback.

And what’s even cooler is that you can have the lyrics in Arabic as well!! Of course you would have to add these manually one by one. There are programs to do this automatically for English songs, but the program will obviously not work for Arabic songs.

Finally, you can also see Arabic meta data on Cover Flow as well:

The other significant additions in OS 3.0 for me were the landscape mode typing for all applications and spot light search everything. I found the shake to shuffle feature annoying as the songs started shuffling randomly as I walked around with my iPod in my back pocket.
I don’t write much in Arabic, but I would certainly like to read Arabic on the thing even if I don’t necessarily write much. I don’t have many Arabic songs on my iPod, but I would also like to have the meta data for these in Arabic just for the fun of it!