The iPad 3 rumor mill has shifted away from pure speculation toward acceptance that the next generation Apple tablet truly is imminent. NextWorth.com, a site that deals in buying and selling used electronics equipment, suggests that now is the prime time to trade or sell your iPad 2.

I recently theorized that Apple could adopt a similar strategy with its tablets, as it has with the iPhone. Although the iPhone 4S is the current flagship smartphone, Apple is still producing the iPhone 4 as a more economical option, and the iPhone 3GS is available from AT&T for free with a two-year contract.