Both rovers are still going. I believe they were expected to have a minimum usefull life span of around 3 months. I think new years eve will be 3 years for the first one and the second will reach the 3 year marker a month or so later.
Well the original expectation was the solor panels would get covered with dust, and the batteries would die and this would all happen in a few months..
Fortunately though, daily winds blow the panels clean, so they just keep going and going.