alt Hacker NewsI just created (yesterday) a product tour I'm pretty proud of:
It's a writing reviewer app, and the landing page is the product. It's literally a document with a critique. You can write in it, use the editor, even delete the whole page.
I always skip tours, but I think this kind of thing (if your product can support it) is much better. Then again, this isn't so much a "you've logged in, now let us teach you how to use this product" as a "welcome, here's what this product does".