Security and cloud computing

Academics warn recently about the dangers of cloud computing, where softwares and data are stored in online companies' servers and accessible from the internet. E.g.: mobileme for Apple, Dropbox, etc... It's strange because it is one of the reasons why I have still not used those services, although I have to admit I am tempted sometimes for the sheer ease of accessing data anywhwere as long as I have a connection.

Cloud computing et confidentialité des e-mails (Euractiv, 17 June 2009)