A New Version of the iPhone SDK is Now Available. Seventh beta version just posted.
So quoth developer.apple.com/iphone, continuing their breakneck, nigh-unprecedented release pace for the iPhone Software Developer Kit (SDK) and iPhone 2.0 beta firmware.
As always, enterprising developers will likely comb through every string and bit in the new release, looking for new features, and hoping strike gold as they have in the past. I'm still holding my breath for video recording and... cut and paste, but admittedly any new discovery will be welcome.