So Snow Leopard is out, and of course a number of applications and essential system add-ons stop working. One of those add-ons is FolderGlance, which I'm the author of. Starting with Snow Leopard, three major things have changed that all impact the degree to which FolderGlance can continue to work:

1. Almost all apps are now 64-bit by default, which includes the Finder where FolderGlance operates. Since Snow Leopard doesn't support mixed-mode binaries, 64-bit apps can't load 32-bit plug-ins and vice versa. At best, a recompile is all that is necessary. Often, though, additional changes to the code are required.
2. In Snow Leopard, the Finder has been "re-written" in Objective-C and Cocoa. (I'm putting re-written in quotes there, because the past few days of reverse engineering have taught me that while a substantial part of the Finder is now Cocoa-fied, large swaths of legacy Carbon code remain.) For a plug-in like FolderGlance, which relies heavily on the Carbon menu and event frameworks, this presents a challenge.
3. Finally, Snow Leopard removes all support for Contextual Menu Items for 64-bit processes. Oops. That means that even if the two above issues could be solved, there still wouldn't be a way to actually have FolderGlance do its magic, since there simply is no way to modify the Finder's contextual menu.

Luckily, there are ways around all of these issues. FolderGlance has no 64-bit issues at all, which is nice and refreshing. (I'm patting myself on the back here.) Further, I'm currently in the process of re-writing FolderGlance in Objective-C. This task is not as large as it sounds, as most of the existing code - the guts of FolderGlance, as it were - is being reused. I hope to have something release-worthy available soon, even if it may only be a beta.

Finally, and most importantly, I have found a way to handle the problem of Contextual Menu Items not being supported in Snow Leopard. I'll be writing a blog post about that topic when the first Snow Leopard-ready version of FolderGlance is out; in the meantime, I'll leave a teaser screenshot here showing FolderGlance browsing my local disk.

FolderGlance running on Snow Leopard. As an added "feature," FolderGlance now puts the Finder's context menus in a menu of its own, under the Finder submenu. My disk, fourlights, appears twice since I also have it in my list of custom folders.