For $29.00 the 10.6 upgrade is absolutely worth it (of course, I has a seed key which gives me access to the builds regardless, hehe) - I've also tried to promote, help, and encourage people to make the switch. You'll get some disk space back, the Exchange support is fantastic, and overall 10.6 performs amazing well out of the box. The improved installer logic means, for the first time ever, I actually *encourage* people to upgrade rather then perform a clean load
For me personally, it's the stability and performance of 10.6 after extended desktop use - I never have reboot my MacBook pro, except for updates, and I leave it running for weeks with dozens of Applications running (Mail.app, Xcode, Safari and Firefox, CS4, etc). It goes from work, to home, to coffee shops, meetings, presentations, Air Plane rides, I let the battery run out and generally beat the living crap out it. It just keeps ticking. Same thing with my 13' Unibody MacBook. In 10.5, I rebooted on a regular basis, usually resulting from Finder hang ups and web browser crashes after extended use.
foetz wrote:
the gfx performance is worse than 10.5, filesystem perf.
Interesting. How did you come to that conclusion? Generally speaking, 10.6 and the native apps now have a smaller CPU, memory, and disk-usage footprint, which translates into greater available system resources. Also, Apple engineers have added compression logic (Extended Attributes) and better block storage algorithms to HFS+ in 10.6, so disk performance, if anything should be faster in addition to video.
foetz wrote:
as long as there're no apps with grand central and/or opencl support 10.5 is the better choice.
Finder? Mail? Most of the native Applications?
For reference, here are some quick bench marks:
http://macperformanceguide.com/SnowLeop ... mance.html