as everybody know, the Iphone (any version) 1st. gen or 2nd. gen does not work correctly with yahoo.com PUSH EMAIL.

Sometimes its pushes the mail almost instand (~5-10s) sometimes with a huge delay of hours.

So if PUSH Mail doesnt work, just go to settings, Mail, (the yahoo push mail account) and switich it off. Do same steps and switch it on. Voila everythings works find now.

You also can use Boss Prefs V1.73 to switch email account off then on.

So all you (we) need is an an APP that does this automatically.