Yes,Ning just changed it yesterday.
Ning updated the Latest Activity Feed and the "What's on your mind" was part of that update.
I'm not really thrilled with the look of the new Latest Activity Feed but that may be because I'm not use to it yet. I'm looking at the Ning documentation to see what options there are to change it. For example, I would like it to have a smaller font since it now contains a lot more information but I don't know it that's possible. I'll keep working on it.
Update: I found a patch to decrease the size on most of the text in the Latest Activity. It also seems that many Ning Creators are asking for functionality to control the amount of text that goes with the Latest Activity and Ning is considering it. I'll keep an eye out for these improvements.
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