Seems to me that regardless of these issues the iBook has been very successful. The G3 iBook I bought was my first mac and I loved it. I did outgrow it as I became more accustomed to the mac platform, but my friend is still using that machine with no problems.
I would hope that apple takes note of the logic board issues, and that a new intel based ibook squashes those issues.
I would hope that apple takes note of the logic board issues, and that a new intel based ibook squashes those issues.