Digital Bits has a review up of the new Star Wars Trilogy DVD, including a catalog of new changes Lucas has made since the last time he ruined the trilogy.

Dark Horizons summarizes.

The biggest change that will have fans screaming is the confirmed replacement of Sebastian Shaw with Hayden Christensen as Anakin's ghost at the end of "Return of the Jedi". Why Christensen is there but McGregor hasn't replaced Obi-Wan seems a glaring continuity error.

Other changes will receive a more mixed reaction. The hologram of the Emperor in "The Empire Strikes Back" done by an old woman and voiced by Clive Revell has been replaced by Ian McDiarmid who played him in the prequels and "Return of the Jedi". The speech has been changed too and gives away the Luke-Vader connection early on.

Most other scenes have just been cleaned and tidied up a bit with more detail - the lightsabers, the Jabba the Hut scenes in "A New Hope", Naboo being included in the Jedi celebrations (although the Emperor statue demolition has been pulled), Luke no longer screaming during his Empire fall, and now Greedo and Han fire at the same time.

That last one has to be a joke, right? It has to be.

UPDATE: Screenshots of the changes. The new Episode IV Jabba looks better, at least, but it's still an awful change, just like all the other awful changes were awful. I hate George Lucas.

UPDATE 2: Okay, special effects changes are one thing -- but changing dialogue twenty years after the fact is another. Giving the Emperor a new speech in an effort to hammer the prequel trilogy into continuity is incredibly lame. So is Star Wars itself, true, but this is even lamer.

I hate George Lucas.