Narrative:

I had just purchased a garmin pilot III GPS and was VFR with a cloud base under me. Approach was very busy, so I elected to stay out of class B, but misread my new GPS. What I thought was the boundary was actually love field's control zone.

Google
 

Original NASA ASRS Text

Title: PLT WAS DISTRACTED BY HIS NEW GPS AND BLUNDERED INTO CLASS B.

Narrative: I HAD JUST PURCHASED A GARMIN PLT III GPS AND WAS VFR WITH A CLOUD BASE UNDER ME. APCH WAS VERY BUSY, SO I ELECTED TO STAY OUT OF CLASS B, BUT MISREAD MY NEW GPS. WHAT I THOUGHT WAS THE BOUNDARY WAS ACTUALLY LOVE FIELD'S CTL ZONE.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.