Who has the stomach for updates anymore?
I'm fed up with updates that don't do much at all. My policy is that if it works well already, leave it alone until there is a really compelling reason to update.
I don't see any compelling reasons to update to Snow Leopard as everything I need works perfectly OK and the whole hassle is not worth it just to gain a millisecond of speed opening Word or something similar.
I agree OS updates should be approached cautiously. As far as not doing anything at all, while this one seems to be mostly "under the hood" type of stuff, Photoshop is running noticeably faster with many functions, including but not limited to launch time. CaptureOne also appears to be faster. We're talking seconds for many functions, not milliseconds, but I'm working with 16 bit layered p45 and p65 files. Could be less apparent with smaller image files. One of the touted changes was better utilization of multi-core processors. I probably won't upgrade my main workstation (dual quad core) for a while, but I may do some speed tests before and after just to satisfy my curiosity.
Overall computer feels "snappier" with most apps, including safari and the finder. One example I noticed is previews in the finder seem to load much faster, especially if looking at a .cr2 file.
So far have worked with CS4 (no problems), CaptureOne 4.8.1 (no problems), LR 2.4 in 64bit (no problems), several non-photography related apps (no problems).
I had to reinstall drivers for the Epson 7900 (still had 6.11 and the install seem to have lost the profiles). The 6.55 driver resolved that and printed fine from CS4. Haven't tried printing from LR yet. Somehow the monitor reverted to the factory profile but that may have been something I did and wasn't caused by the install .. don't know
EyeOne Match required Rosetta to be installed, which was done automatically, then launched fine. I didn't actually make a profile but it appeared to be working normally. (My copy is old, there may be an upgrade for it already.) I'm sure a few other apps I have will require Rosetta.
Been working with it for several hours now, no problems so far.