Winplosion was odd for me... I've tried other Expose-type apps and every one has felt klugy aside from that one, but I still didn't keep it installed.
It's so hard to make Windows usable like X... at least the virtual desktop toolbar addon lets you disable the view animation so you can switch quick(er)
any value you get from seeing thumbnails of windows is negated by the slow drawing.. a day late and a dollar short
What I want is a virtual desktop plugin that does thumbnails like Enlightenment did back in the day. that was convenient