Yes it is. It works excellent, but I still get better sensitivity with the legacy driver. If you would like to use the legacy driver in BT4PF it's available in the repo's.The driver is fine in BT4-PreFinal, no need to go playing with it.
First blacklist the rtl8187 and then
apt-get install r8187-drivers (remeber it's for BT4 Pre Final > kernel 2.6.29)
Just my 2 lipe. (Currency of my dear Balkanian country )