Not that I know of. But you can easily read .Mobi books almost anywhere by downloading one of the free Kindle apps from Amazon. They have readers for Windows, Mac, Android, iPad, Blackberries, and almost any other platform you can think of. These apps all support Mobi books.
Check the Kindle section of the Amazon store for your country (if any), or on Amazon.com. Or try this link:
One caveat: If you plan to use the app for books purchased from Amazon, be sure to download it from the same Amazon store as the one from which you will be buying the books, as you will have to register it to the same account. This isn't an issue if you get your books from another source.