Hi, I am a co-founder at fluxtream.com, and I confirm Scott's comment: we are actively developing the app. Although we love the publicity, we didn't intend on raving about it just yet. Be sure to get an update when we do.
Michael: we are focusing on passive data. We might consider adding a generic connector that would pull data off Google Spreadsheets, but for now the manual entry stuff isn't supported. We would suggest you to have a look at Quantter if that's what you're looking for.