i talked to a dealer and he talked to a pioneer guy here in germany.pioneer guy said that the new device which will be released this summer is the same sofwtare like the F900bt, it's only a facelift.
but there will come software update which improve the boot time.so the f900bt and the unit which will come in summer will have the same software version.i am very interested what will be improved with the boot time.also the bluetooth will get a upgrade.will see when they release sth.
can't promise when it's released but i believe the pioneer guy 
If anyone else can ask his pioneer partner if they knew sth about a upcoming firmware for the f900bt and f700bt would be great.
regards