After using both the 8800 series and the 8300 series, I was simply sitting on the fence trying to decide which way to go as I had (build quality) problems with both. I could attribute the issues to the fact that I got both on the day they were released, thus they are very early production models.
Cut to the chase, I caved in and just yesterday bought another 8300. While I'm terribly concerned about dust, I find the keyboard, overall size and shape of the Curve very compelling. If only the 8800 series had a better keyboard I would not hesitate as a camera is useless to me. However I've tried over and over to become accustomed to the keyboard on my 8800 and I simply handle too much email to not have a comfortable keyboard with which I can maintain my speed and accuracy. The Curve makes it possible, the 8800 well....it's probably just me
As they say, you cannot have everything and as I know from buying lots of phones, there is no perfect solution.
So I sit here with crossed fingers that the new 8300 I hold in my hand, does not accumulate a display full of dust. And yet the odds seem daunting. Oh well, time will tell. I do have a friend that has been using her 8300 for quite some time without dust, so it is possible if not probable.