Just to note that the default postbit layout is different from the linear layout that WT had used since the big vB3 upgrade. If you'd like to go back and use the linear layout, there is an option available within your UserCP:
UserCP
Edit Options
Thread Display Options
Post Layout
Linear
And to view the thread preview, click the little bullet before the username on the thread listing.
Sweet work Chris...errr Chroder, I get all mixed up now...
I really like having the postbits on the left, makes it easier to read and track the thread.
//edit
I was thinking what might look good is if the top of each thread was rounded like the boxes on the right. I think it would tie the theme together very nicely.
Thanks Cap I like the postbits on the left as well, but some people on lower resolutions might find it less squishy if it's on the top. I personally can't stand it on the top, harder to read or something