iTunes Publisher was a great time saver for me and I'm sure to many others. Unfortunately, it appears that it won't work well with iTunes 7.1 (Mac version, anyway). I've discovered that when exporting a playlist as a text file the track numbers are off (you get multiple 1's, 2's, etc.), and the songs do not appear in the same order as you arrange them. I admit I haven't tried exporting in other formats, but I did contact the developer and unfortunately they have no plans (as of 4/21/07) to update the product.

If anyone knows of another product like this please share the knowledge! (And why hasn't Apple just given us the option to choose what info is contained in the files we export straight from iTunes?)