Tap the Stocks icon - that's the one that looks like a graph on the home page. You'll see the default stock page listing the Dow Jones Industrial average, and stock prices for Apple, Google, and Yahoo. Gains and losses can be tracked in dollars and cents and by percent change.

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You can track other stocks: Tap on the "I" at the bottom right corner of the page, you'll get the edit page. To delete a stock, just tap the "-" and tap delete. To add, tap "+" - then type in the name of the stock or the stock symbol, then tap "Search". Tap on the correct company name, you'll get back to the edit page, then tap "Done" in the upper right hand corner. Your new stock will be listed.

Give the iPhone a few seconds to update the stock quotes, and you're ready to go.