Scoble reports that the IE7 team is listening to complaints about CSS problems:

Address CSS consistency problems. Our first and most important goal with our Cascading Style Sheet support is to remove the major inconsistencies so that web developers have a consistent set of functionality on which they can rely. For example, we have already checked in the fixes to the peekaboo and guillotine bugs documented at positioniseverything.net so use of floated elements become more consistent.

That will make our lives simpler, that's for sure...