Unfortunately, the Marketplace is still closed. Sure , you can look at the Android Market from your web browser, but you can't download if you don't have an authorized device, and that's a shame. If you don't have an authorized device you are still stuck with pirating the apps because Google don't want your business.
Update: I just came across this youtube video of the presentation.
P.S. If you visited my blog a few hours ago, you might have caught my post where I said that the Marketplace was open to all devices. Nope. I goofed. Sorry.