Free File Sharing Service
With Wikisend it`s simple and free. Upload and download lots of files, big files, small files, data files, media files, archives or backups – any files. Share files with your friends using E-mail, MySpace page, your blog, forums and so on.

In my view an interesting concept but I don’t like the 100 MBytes limitation, also the no need to register makes it easy to spread viruses & co.

I like the options of defining the lifetime of the file ( 1-90 days ) and being able to protect the file with a set password. So based on only these two features I don’t see what the revenue model will be other than the obvious – more storage for mo money.