Together with Dropbox, CloudApp is another tool I couldn’t work without anymore. Originally developed as Mac-only sharing utility by the Linebreak guys, CloudApp eventually evolved to have a full-featured web interface and an API for developers to plug into and create unofficial clients. Thanks to this integration with 3rd party applications, some great pieces of software like Courier for Mac, Weet and Prizmo for iPhone gained CloudApp uploading capabilities. Not to mention Cloud2Go, the first unofficial (and paid) CloudApp client for iPhone.
Cloudette is a new CloudApp client for iPhone (and soon iPad) which lets you check on your files, and upload new ones. For free. Read more