The iPad Mini which is rumored to be released by Apple, Inc. (NASDAQ:AAPL), one day could exceed the sales of its bigger brother, the iPad, said an analyst from Topeka Capital Markets.

According to Brian White, the sales of the iPad Mini, if released, will not be tantamount to outright cannibalization of the full-sized iPad. He believes that the iPad Mini will seize about 20 percent of the present iPad’s sales, a minor form of cannibalization, but perhaps good enough to make the smaller device a bigger seller.

White believes the iPad Mini may be most successful in emerging markets, including China, as well as the educational sector. A smaller device, said the analyst, would be ideal for younger users, and will not be much of a financial burden to schools.

A third source of sales could be users from developed countries looking for a smaller, simpler device as a backup to their main tablet computer. The iPad Mini’s rumored price point is somewhere between $249 and $299.

White’s investors’ note released this Thursday also underscored iCloud, Apple’s cloud computing solution, that could help users with two iPads (the full-sized and Mini versions) easily swap information between devices. He said that the possible $300 price point would not be a problem for most budget-conscious buyers currently targeted by tablet makers such as Amazon.com, Inc. (NASDAQ:AMZN) and Google (NASDAQ:GOOG).

This is because the iPad Mini will likely be a better-quality device with a larger, 7.85-inch screen.