This question just popped into my mind. I saw a post today which was edited by Doctor Q because of a simulated signature. I don't know what the sig was but this got me thinking. I'm wondering, are Tapatalk sigs like "Posted from my iPhone using Tapatalk" allowed? The forum rules don't really specify this in my opinion: http://guides.macrumors.com/Help:Forum_Rules Personally, I like to let other people know when I'm posting from my iPhone because often my replies are short and not very detailed.