Actually there might be now - I've started putting dev builds for Windows on Filefront, which seems to work better than my own website.
I've checked out FileFront, an account is free, they have massive capability for storage and bandwidth, don't limit storage for any user, and it appears they allow files for any platform, not just Windows.
When I recently opened an account there, it only took a few quick minutes. I was also able to upload much quicker to their server, only took about a third of the time compared to FTP to my website account.