It sure is great to be able to see the first few lines of emails as they come in on the iPhone, but it’s equally helpful to see more subject headers on the screen at one time. The more emails I can see at once, the more I can ignore, focusing more closely on emails that look promising.
iOS allows you to change the number of emails up on the screen at one time with a simple trip to the Settings app on your iPhone and iPod touch. It’ll even work on your iPad, but that may not be as important as it is on a much smaller screen.