nope, don't think so. i wanted this before.
the task module would need to support per-state geometry.
that could be cool. group normal/active w/ big icons, active having text, group minimized w/ small icons. hrm.

the closest other thing you can do is a thicker bar, sort of how the standard alt+tab dialog looks; have row of iconic tasks lining a horizontal screen edge and a label on the other side whose text is the active task.