"I think Palm Pre is concerned more about its users"
I don't. Really, the more I think about this the more I'm convinced it's just a manipulative marketing tactic. Whether it will be a successful manipulative marketing tactic, I don't know yet.
Syncing music and data from a Mac doesn't seem to be that hard. Plenty of mobile device makers do it, and Apple even happily advertises and points people to the software used to do it (see, for example, Nokia's Mac transfer support). If you're concerned about supporting your users and ensuring they have a reliable good experience with your product, that's what you should be doing.
But Palm is knowingly doing something that's not only unsupported, but designed from the ground up to get Apple to take actions which hurt Palm's customers. This is literally the opposite of being concerned about your users.
The only reason I can think of for doing this is that Palm has seen how much press coverage you can get for your product if you can turn it into an anti-Apple story, because the tech press will eat out of your hand if you can give them a multi-million-page-view Apple controversy. And that's precisely what Palm is getting: the coverage of the Pre's syncing has effectively been a massive worldwide advertising campaign building up a sympathetic view of the Pre in the minds of potential customers. And best of all, it hasn't cost Palm so much as a single dime; it's all coming for free.