I agree completely. I hadn't really used the new versions of XCode/IB until I got my copy of Panter. I had no idea what I was in for with regards to stability. And because I did an archive and install when installing Panther the frameworks for the older versions aren't there so I can't run PB. I've been reluctant to copy things over to try to make the old versions work, but I'm afraid I may not have a choice.
Is anyone else finding IB especially to be very crash prone? I find a lot of errors with "inconsistencies" which then lead to complete meltdowns. Often I can't even get the nib file open to fix it.
Anyway yes this is an early iteration, but it's still a released product and I hope for apple's sake that my experience isn't the norm.