Check Out Windows Phone 7 Apps via Your Desktop
It's strange that Microsoft still hasn't updated the Windows Phone Marketplace to reflect the newly launched platform, but Paul Willen has delivered a solution in the form of Marketplace Browser. It allows you to browse available apps via your desktop browser, and when you click on download, it will open up the Zune desktop application and show you the app. I think that function might only work in the USA though - for whatever reason, whenever I click on the download link, the Zune Desktop software tells me that "the requested item isn't available" in my location. Yet when I do a search for that same app, it's there in the marketplace. Maybe it will work better for you?