I Don't use arabic because i don't have an Arabic keyboard at the moment and I don't see the reason to buy 2 and waste my money.
من كان لا يملك لوح أزرار عربي يستطيع استعمال اللوح الالكتروني الموجود في هذا الرابط
MuftiSays.com :: Arabic Keyboard
However Azmi BASHA I believe only a handful of people on this forum will care about "Arabism" and the Mother Language of Lebanon, you'll find this out soon.