Currently Being ModeratedFeb 27, 2012 3:34 AM (in response to ruggiero)
In my experience it is absolutely useless on ALL iOS devices:
Currently Being ModeratedApr 8, 2014 2:35 PM (in response to ruggiero)
I am having same intermittant issues with iMessage and I have now switched it off. Intermittanyly imessgaes sent from my iphone only rece replys to my imac and no reply to iphone. Causing me real business difficulties.