Snap a pic; upload it to Dropbox. All the usual camera settings and functions are included in the app, but as it uploads to your Dropbox account, you won't clog up your valuable memory.
Multiple photos can be queued up for uploading in the background, so you can get on with other things. While QuickShot only handles photos at the moment, video support will be added to the $1.19 app shortly. [iTunes]