Honestly with Apple its a tough call on ram. They take planned obsolescence to a whole new level but they usually like to sell their "old" products even after new ones launch so the "less fortunate" may be allowed into their hollowed walled garden. So as stated above by jaslion it should still work for the time frame your talking. It won't be stellar by the time you hit year 4 but it should work....(crosses fingers) but I would expect a nice new iOS upgrade at some point to very much slow you down if history is any indicator.