SAN DIEGO--Rseven makes an interesting service that archives everything you do on your mobile phone so you can review and analyze your activities later. With the app on your phone (it was shown on Series 60 phone -- the first demo at DemoFall 09 not on an iPhone), everything you do on the phone is stored, including recordings of incoming and outgoing calls. Call logs, text messages, and photos. (Actually, it wasn't clear if activities in other apps, like e-mail, are also saved.)
Once you sync your phone to the service, all the data goes onto the Web so you can pick over it later. You get charts and graphs showing you who you communicate with the most. You can easily tag and share your photos. Mostly, you can just see what you've been doing with your phone at any time. The CEO calls it a "lifecache" service.
It's a good idea, but it doesn't belong in an app (having to sync to save the data is a bad idea). Rather, this is the kind of thing you should be able to get online from your mobile phone carrier. They already have the data anyway, so why can't they display it for you? Hopefully the Rseven team realizes this and is trying to get their service out to the carriers.