Nokia firmly leads the pack by Bluetooth numbers
This table shows the top 20 manufactures of 5153 unique bluetooth devices spotted in Oslo, Norway between 11. November 2010 and 12. January 2011. Device manufacturer Count Nokia Danmark 1811 Sony Ericsson Mobile Communications 888 Nokia Corporation 638 Apple 282 Samsung Electronics Co 241 Samsung Electronics 160 Texas Instruments 114 Hon Hai Precision Ind Co 82 Infineon 80 Private 78 Lg Electronics 75 Tomtom 67 Novero 65 Usi 61 Parrot Sa 39 Continental Automotive Systems 35 Motorola 29 Liteon Technology Corporation 25 Apple Computer 19 Alps Electric Co 18 I am grabbing the information from nearby devices on my daily commute to work, which results in an average of 150 unique devices. The data was gathered infrequently , mostly on weekdays. PS. I'll get back to you shortly (this year) with a more interesting "tool" related to bluetooth!