A bit about my experiences so far: First, I was able to download the update from macupdates.com at about 78K/sec. There was a complaint about a shrink wrap engine error at first, but it seems that there was an attempt to reconcile the entire archive after downloading only the first piece. I ignored the error, and after downloading all pieces, everything went smoothly. Before the update my system was using 58.8 MB RAM according to the "About this Macintosh" panel in the apple menu. Now it claims 65.6 MB. I changed nothing in the extensions manager, just went through it to make sure that no extensions were loading that I had previously disabled. I can't say I'm happy with the way everything in the hard drive has been rearranged. There is a new folder called "Applications (Mac OS 9)" that includes the contents of my previous Applications folder, the Apple Extras folder, Sherlock 2, Graphing Calculator, Quicktime, Apple CD Audio Player, etc. My "Utilities" folder was also moved into this "Applications (Mac OS 9)" folder. There is also a "Documents" folder which contains my previous "Documents" folder (made by Final Cut Pro and also containing "Microsoft User Data" created by Office 2001). This new "Documents" folder also contained the installer logs. A word about folder icons: The new "Applications (Mac OS 9)" folder assumed the applications folder icon, and I was unable to change its name back to simply "Applications". Instead I created a new folder called "Applications" and placed things as I preferred. I trashed the "Applications (Mac OS 9)" folder (empty) and the folder entitled ""Applications" which I created did not regain the icon, even after rebuilding the desktop. My old "Documents" folder inside the newly created one had the old documents folder icon, the new one did not. My Utilites folder, neither inside the "Applications (Mac OS 9)" nor outside of it regained it's previous utilities icon. Any applications with custom folders retained their icons. Not that this is a major problem, but I find it interesting to note that not only is OS 9.1 rearranging the directory structure (completely fouling up my Drag Thing preferences), it is toying with custom icons, as well. Other than this, I have not noticed anything outstanding about the update. Interesting comments from the installation log: - Did not replace “CarbonLib”, because the existing file is newer than the file to be installed. The rest of the log was pretty self explanatory, mostly updates, with a few removals, such as: - Removed “vBigNum”. - Removed “vectorOps”. - Removed “vMathLib” Also there was the ever present replacement of items previously deleted such as all of the standard modem and printer descriptions. another major note is the existence of the new menu "window" in the finder which allows you (obviously) to select from open windows. I can't really commentn on its stability yet, nor really rate its features, as I can't seem to notice too many new ones.