"I am able to connect a Symbol LS4278 bluetooth laser barcode scanner with an iPad. I did have to set the scanner to use a Variable PIN code. See page 4-16 of the Symbol LS 4278 Product Reference Guide."
I'm curious as to all the scanner settings you had to use to make this connection. I'm working on a proof-of-concept along these lines for our company with an LS4278 and my iPhone, but thus far have not been able to get the phone to see the scanner. I set my scanner as a HID Slave, tried both general and limited discoverability, NA keyboard, immediate auto-reconnect, variable pin (per your comment), enable/disable auth, enable/disable encyrption.