Nope, not really
Dropbox is still your best option for that
Or you can try SugarSync
Hopefully there will be some work done to iCloud that will be announced at WWDC that will allow just what you're asking. I think it has a lot of potential, even for a one apple device person, but it needs some serious improvements.
It's hard to think there will ever be a one size fits all solution for everyone's online needs. Dropbox is great (I have 60GB of space there myself), but it doesn't do anything other than file storage. You still need something else for contact and calendar syncing, device tracking, etc.
I personally use iCloud, Google, and Dropbox. Different tasks need a different solution.
Couldn't agree more
I love the iCloud integration with my iDevices
And I can't imagine my world without Dropbox now, I use it extensively