Wow!!! Long live the Intel!!! 
I wrote about files exchange impossibility between smartphone and ultrabook and vise versa due to lack Obex File Transfer Service in BT stack Intel still 2012.12.10 12:09 PM Intel (R) Centrino (R) Advanced-N 6235 problem
Barely two years and voila - Microsoft Obex File Transfer Service included in the PROSet / Wireless Software for Bluetooth (BT_17.0.1401.03_e164.exe).
Bravo Intel!!! 
Perfect customer support.!!!
Well. Files bungle begun transferred in both directions. But what about bitrate? It is just awful!!!
My problematic configuration....
1. Ultrabook Samsung NP530U3 with Intel Advanced-N 6235.
2. Smartphone Samsung Galaxy S3 GT-I9300 with a combo WiFi + BT module Murata M2322007 with integrated dual-band (2,4 and 5GHz IEEE 802.11/b/g/n) bluetooth 4.0 + HS & FM Reciever chip Broadcom BCM4334.
On an example of the file transfer size ≈ 32MB (33743680 bytes) from NP530U3C to GT-I9300 bitrate barely reaches 140KB/sec.
In the opposite direction from GT-I9300 to NP530U3C the same file is transferred in 3min. 14sec.=194sec. Accordingly bitrate is 33743680 : 1024: 194 = 169,86 KB/sec..
But what about 24Mbit/sec that stated in 4.0 + HS specification?
I hope Intel will solve this problem in next two years. 