First time Iphone owner here, have the 3GS since Monday. Great little device, pratically a computer in your pocket. Truly impressed by the speed too, 3G seems almost as fast as wi-fi which I was surprised to see - the 3GS can take advantage of it's 7.2mbps speed here in Canada. However, been having trouble with Yahoo Mail's push as it has not been pushing emails the last 2 days, worked perfectly fine the first two days but now it doesn't seem to be working. All the settings, etc. are correct and unchanged. I also did a reset holding down the power/home buttons and no difference. It does receive mail when I open the mail app and it checks the mailboxes but it's definetely not getting push email from the server. Is this on Yahoo or my wireless provider's (Fido in Canada) end? Anything I can do? Thanks in advance.