I'm at my wits end here.
I have the BCM-Dell-DW1550-BT, and tried everything mentioned in this thread. vendor and product id are fine, as they are already configured in EMlyDinEsH's kext.
Also I can switch BT on and off, and it sees all my devices. But I cannot connect to them. I have an Apple Wireless Keyboard and a Magic Trackpad. Both show up, and when I try to connect the keyboard, I'm asked to enter the code, but it doesn't react when I hit the keys. After hitting "enter" the keyboard is displayed as connected, but it doesn't work.
I deleted the com.bluetooth.plist a,d restarted, and I went through all hoops i could find using google. But nothing seems to work.
Any ideas?