I'm with out participated also, but since it's a topic of convo I'm assuming Josh will be on it.
I do like this new forum on mobile. Will be nice once the bugs are out.
Mine keeps crashing when I try to PM (mobile OS 7.1 on an iPhone 5)
I am using the TFO app on my android devices and tapatalk on my kindle.
Never saw a participated tab. I have only a subscribed button. Is that the same?