no sir..haven't, actually didn't even get the PC to recognize something being connected.
have since switched phones however, so it might be different firmware now
May be different for a Verizon u740, but for me, Bell phone, I connected my phone with the supplied cable went to the menu system on the phone and chose "Mass Storage" in Tools and then chose "Connect to PC". It worked for me and I transferred a few songs that were Mp3's and it worked like a usb flash drive. Songs played flawlessly.