I realized that my random blog may not be the best place to find readers interested in HaxeFlixel development, when there is now a DevLog section at the HaxeFlixel forums.  So further posts will be found at 
my new development log there unless they are unrelated to HaxeFlixel development.  There's one there already about a FlxScrollableArea / FlxSpriteGroup / offscreen content gotcha that might save you some time.  Enjoy!