Pioneer has release version 2.0 of the firmware in their AVIC-F series of headunits (F90BT, F900BT, F700BT). The new firmware is available here and has the following improvements as documented by the AVIC forums:

1. 1. Boot time is a lot faster, its tolerable now. I am so used to waiting the original time it comes up and im like wowa, nice. 30 seconds exactly to music from ipod and screen. 72 seconds from bootup till vr update complete. 102 Seconds from boot for Bluetooth connection and loading complete.
   
2. The screens respond as fast as you touch them there is no lag now, great improved.
   
3. The blue boxes are now gone from the idle no route input map screen. Amazing what a difference this makes in the viewable area. The destination ins deleted now once arrived.
   
4. The screen bright max before is what 7 is now, at 10 its almost blinding! However this isn’t in effect until the unit completes boot up, you suddenly see when it reads the settings the screen comes up much brighter all of a sudden.
5. The contact screen is useful now! It lists them by mobile/office/home now.