It is set to hibernate (suspend to disk) when the battery reaches a critical level (2%) so if the battery discharges completely, all my programs are still running when I plug it back in.
I couldn't say what the default was because I didn't install Ubuntu 7.10 from scratch, instead I upgraded from Ubuntu 7.04 (where suspending was also working flawlessly).
I would be willing to bet that Linux has all of these features too. But I would also be willing to bet that they don't work as seamlessly as OS X. You would loose that bet. I run Ubuntu 7.10 on my ThinkPad and I haven't had a single problem with suspending/hibernating. When I go to sleep, I also put it to sleep just by closing the lid. Compiz Fusion is enabled, in case you're wondering. I only reboot when I get a notification from the update manager.
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I couldn't say what the default was because I didn't install Ubuntu 7.10 from scratch, instead I upgraded from Ubuntu 7.04 (where suspending was also working flawlessly).
There is no mention of Romania in the article.
I use it at home and I love it but it looks like the developer's claims of Ubuntu being suitable for server and workstation are true.