From the competition page:
Using the PositioningManager from Java ME Location API by Alessandro La Rosa (jappit). This wiki article explains how to use the PositioningManager from the Ovi Maps Java ME Location API to get information about the device location. Alessandro contributed a number of articles and a project; while this was our favourite, they are all very well written and provide an excellent insight into how to use the Java Location API:
Thank you Nokia Developer!