This is a bit unexpected. Apparently it just shipped last week - almost two whole years after the console versions!
As I recall from the older reviews, this is very much improved over Lego Star Wars I and II. I was thinking I was going to have to settle for the DS version (which is even more of an improvement over DS Lego Star Wars II, having been done by a completely different group). I'm glad I didn't.
I'm thinking I should probably get this now, as it seems more likely to fade into obscurity than to conveniently settle any deeper into the bargain bin than it already is. Or maybe it will appear on Steam, like so many other older Lucasarts releases.