I'm surprised nobody knew about it being installed. When i bought my laptop it was a selling point, one for which i gladly paid to keep the subscription. Where i live and work the chance of theft is moderate to high, its worth it to me. But my laptop is now old enough that i doubt i'll see any bios updates...and being a dell (poor update track-record, ime)

Fun disclosure: i also run Cerberus tracking on my phone, and Lojack on my vehicle :)