Update on April 28th: I got the chance to try Microsoft Office for Mac 2011 beta 2. I discovered the following:
Arabic letters do not render properly in Microsoft Word for Mac 2011 (first picture). However it works find in Microsoft Outlook, PowerPoint and Excel (next 3 screen-shots).
Update: According to Apple-wd Word does support Arabic.
Remember that this is not the final product.
Update: The direction button isn’t for switching to RTL. Arabic letters are disconnected. No Arabic support until now.
However it appears that there is a “Direction” button in Word for Mac 2011.The Direction button is for writing up to down text. We’re hoping that we will see Arabic and Right to Left (RTL/BiDi) support in Office for Mac 2011. Microsoft has avoided supporting RTL languages such as Arabic and Hebrew.
Arabic version of this post on SaudiMac.net.
Looks like Microsoft Office for Mac 2011 beta 2 has been leaked. We do not recommend installing unofficial software.