IT WORKS!! I got my Blackberry Pearl to work everytime with the N800. Well it is with 4.2.1.66 version. Somehow that version enables the connection. I must have upgraded to the next version and since the pairing was already eastablished it kept the same profiles open thru each device. When I paired the N800, it didn't work at first. I upgraded to the latest version and it still didn't work. I downgraded to 4.2.1.66 and it paired and on the first try gave a different error than I got with the other versions. I tried again and it worked. I would think but I'm not sure if I upgrade to the latest and somehow keep the pairing settings it should work. Make sure you downgrade by uninstalling them in add/remove programs and then use usb to downgrade. Link to 4.2.1.66 Good luck!!