You're probably going to hate me for saying this, but I think I'm actually half hoping that Leopard is not very good, so that I won't feel that I'm really missing out by not being able to get it! (assuming that it can't be made to work on G3s) If it does turn out to be amazing, and a million times better than Tiger, I'll feel really left out and back to being stuck in the Mac's past
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Main system: custom C2D 2.66GHz tower/4GB RAM/2600XT 512 MB/500GB HD/XP Pro x86+Vista Business x64
Main Mac: Beige G3 minitower (Sonnet G4 500MHz/640 MB DVD/USB/Radeon 32 MB/OS 9.2.2+10.4.11)