I really like this. Had a quick play with the hosted demo before the Application Error started appearing. Going to install it on a server myself tonight. It would be great if there were more 'offline' activities. I see you plan on adding RunKeeper. I'd also like to see Nike+ and other wearable trackers (FitBit, Withings scale etc.). I noticed a minor bug in the hosted version, so I filed an issue.
I've been thinking about building something like this for ages but never got around to it.
I'm working on a book about deploying rails applications and was hacking together a script at the weekend to extract words written per day from the git diffs. Will link it up to a version of this so can easily chart it and see when I'm slipping.
This is an amazing project, thanks for building this, I'm going to try this out. Naveen, cofounder of Foursquare, has been tracking his life - http://api.naveen.com/ in a similar way.
Well you could build one quick with fnordmetric https://github.com/paulasmuth/fnordmetric
In fact looking at the screenshots of reportr it looks very like fnordmetric as well.
An online application that tracks online and offline tasks, personal analytics, events, contacts and goals and presents it visually on a single screen (I like rainbows and unicorns too).
Reportr isn't actually operational I take it, since I get an application error every time I try to sign up.