I connected my GS3 to a computer running Kies 2.6 yesterday and it prompted me to update to Android 4.3 which I did...seems to work really well for the most part (although I did it late last night so haven't had much time to mess around with it yet), but I've noticed that, at least at times, the GPS icon in the notification area is constantly coming on, disappearing, and then coming back, etc. - anyone else experienced this? My only concern regarding it is that my battery will drain faster because of this...?