Just received my replacement 900 and I'm really kind of ticked off.
First off the beep is not as loud or as continuous with the new unit, but it IS still there. I've heard it in a few clips and it's the same rhythmic 'beep...beep...beep" but at a lower volume. I could almost live with this one.
However, the new one as additional issues.
Issue 1- In some scenes the lens is making what I would call an almost 'scraping' noise as it focuses. Granted I heard this in quiet environments, but this is not good regardless.
Issue 2 - This may or may not be related, but the new unit is without a doubt softer than the original unit. There is no 'pop' in the picture that is so characteristic of the 700/900. Now I haven't had any time to shoot outside since the battery is charging and I've got some other things I need to do, but some of the indoor videos are such that I would never have guessed they came from a 900 or 700. This could well be tied to the autofocus, but it may not be. Later on I'll test the unit in MF, but regardless, I need the autofocus to work.
So I am frustrated to say the least. I never had these issues with the 700 and given that 3 out of 4 units we know about here at AVS have had some issue or other (beeps, lens etc.), there appears to be a serious QC issue at Panasonic.
I will probably hold on to this until my Canon comes, but it certainly will not be the unit I keep. At the very best, I'd need to have this replaced once again.