This have been the most annoying problem for me. I’m using Snow Leopard 10.6, but according to bug reports, it exists since Tiger 10.4.
I came across this issue few months ago when I bought an Android phone (HTC Wildfire) and of course I needed Skype to be there as I’m using it at work. I was aware that Skype team already released an updated Skype for Android app that supports low-resolution displays (320×240 in this case) and my device was listed on official websites as supported one. But guess what? I even couldn’t find Skype app in Market on my phone, only some chinese apps and searching it by process name returned me 404.
If you have a nice GDI printer Xerox Phaser 3117, you will wonder there’s no driver for Mac OS X and Xerox website says this printer is not supported in Mac OS X 10.6.
As you know Mac OS X uses Apple’s developed CUPS (Common UNIX Printing System), so I’ve been used this printer on FreeBSD with Samsung GDI driver, but that wasn’t working via Mac’s interface. Even though there’s a special drivers build for this printer Splix, that was not working properly.