Right Joe, this is not a rover like the Spirit or Opportunity rovers. It will however be able to dig as far as 19 in. deep into the soil to scoop the permafrost out to analyze it for microbes and such.
The primary mission objectives of the Phoenix Mars Lander are:
1: Study the history of water by examining water-ice below the martian surface.
2: Determine if the martian arctic soil could support life.
And Lockheed Martin built the entire lander
For those that will be watching the NASA TV feed, they should get telemetry back from the lander I think no later than 30/45mins from landing, so we will know quickly if the landing was a success.