Maybe you know that my N9 was stolen, so I'm using yappari right now with my old N900.
I can fix those 3 bugs for you this weekend
Just let me know. I don't want to do something you will do.

BTW: media upload limit is not 12mb, it's 16mb. It was changed some time ago. Also max group participants are 50 instead of 30, but maybe you already changed it. I'm not using groups right now.