I am wondering if the people who have problems with Yappari on wifi have tried restarting Yappari after they connect to wifi. I have noticed that sometimes when I come home and my n900 switches automatically from 3g to wifi Yappari won't bother to reconnect. I must either quit Yappari or disconnect my n900 from the network completely for a few seconds so Yappari notices then reconnect again. Since my home IP address is completely different to my 3g IP address there is no way Yappari could still be connected to the server after the network switch.