Last time I checked, my iMac's G5 processor was 64-bit... As are those found in later dual single-core, single dual-core and dual dual-core (quad-core) PowerMac G5s. And as for the GPUs, PowerMacs were also compatible with a fair share of high-end offerings...
So, tell us again why there would be no benefit to PowerPC G5 users in providing them with the latest advancements in 64-bit optimizaton and OpenCL/GCD? Are you sure you weren't talking about Apple itself, instead? Well, waddyaknow, they even get to save in developing costs while driving (or trying to) Mac Pro and iMac sales up (unless those users aren't dependent upon OS-X or OS X-only apps, that is, in which case they may as well jump ship and buy PCs the next time around)...
Personally, I'm not mad at Apple because my nearly 5-year-old 20'' Rev. A iMac, while defective and noisy, served me well since I bought it and is reaching the end of its usable life anyway, prompting its imminent replacement with, I hope, a bigger Intel-based 24''er running SL. However, if I had a room filled with Quad G5 PowerMacs, I would be pissed as hell.
You said what I wanted to say better than I did.
If I had just one PowerPC Mac and one $129 Leopard purchase, I'd not be mad at dropping PowerPC support. I think Apple is making a mistake though with its best customers as this notion that G5s don't support any of Snow Leopard's features is blatantly false as are the notions that Snow Leopard is a completely new operating system.
It's NOT a new operating system! It's a major bug fix release!
Think Windows Service pack. That would be a very good description of Snow Leopard.
Why else would it be just $29?
Even by Apple's own descriptions of Snow Leopard, you'd be hard pressed to state a technical reason why they couldn't just as easily be implemented on a dual processor G5. And some fixes would probably help even on a G4!
Onto my last point... Why do silly Fanboys shout TROLL every time someone criticizes Apple?
I've used Apple computers since before half the people here who shout TROLL were BORN! LOL