I can confirm that CS6 has a major bug in the transform tool, the same you reported about CS5.
Scale a simple text block using CTRL/CMD-T, using the transform handles, and the text container's text is totally wacked out. Just as you show on your blog.
Frustrating for sure.
CS3 worked fine, but it had the misreported text size bug (scaled text's point size did not show accurately in the properties palette).
As a Mac user, I can't speak to any Windows-specific issues, but point #1 reminds me of a post from another user, who observed that a single text box scaled using Free Transform would have its font size updated accordingly, whereas a selection of multiple objects would not, as the change would remain a (removable) transformation instead of being translated into a change in font size. In contrast, Numeric Transform would consistently result in an updated font size.
What's striking me at the moment is how the text box and the Free Transform bounding box don't actually match. This means that when you scale a text box using Free Transform, the original positioning of the text box will be lost. (Fortunately, alignments of the text block in relation to other objects—though not the text box itself—can be made quickly using the Align panel.) I'm not sure I'd ever noticed this before, and I wonder why it is.
One text resizing idea: The "Web Standard" keyboard shortcut set for Fireworks includes Text > Size > Smaller (Shift+Cmd+<) and Larger (Shift+Cmd+>). These commands resize in increments of just one pixel at a time, but offer an alternative way to quickly adjust text size with some visual feedback.
@pgurney: If the Windows-specific Transform tool bug (the one that causes distorted text) is still an issue in CS6, please consider reporting it using Adobe's official bug report form: