technology writer for the Guardian newspaper has said that people who have bought Apple's Leopard software should downgrade to Tiger.
Charles Arthur reports that many people who upgraded, including Dave Winer, are claiming that Leopard crashes, stalls and freezes. Arthur's own experience was similar. He noticed some cosmetic improvements, but his system sometimes freezes inexplicably, saying this happens, "...after I've disconnected it from a network or after it wakes up."
The operating system is slower than Tiger and constantly needs rebooting. He said that it was much more sensible to go back to Tiger, as there was nothing in the new operating system worth the hassle he has experienced.