I'm a bit of a data nerd with a history in tax accounting so I felt I needed to keep track of every crypto transaction so I can declare my earnings if and when they happen.

This is a demo of the mining tracker: http://cryptosheet.com/mining
It crawls Hypernova every 5 minutes to get new data. This data is ultimately consolidated after 24 hours in order to leave me with approximately 1 day resolution on all my mining acquisition (normally more than enough for accurately calculating basis). It makes it easy to see how much of the earnings were 'mined' and how much has been earned from market variation while holding coins. It is capable of tracking any pool with an API and will soon be capable of tracking any address (hence pools like P2Pool and Middlecoin).

This is a demo of the trade tracker: http://cryptosheet.com/trading
I'm far less active with trading than mining which is why this part seems slightly lacking. Ultimately it will support similar functionality as the mining currently does and will allow imports from most exchanges very easily.
I'm also planning on adding a dedicated "Reports" section specifically for creating, viewing and printing various types of reports. Things like profit and loss for a given period, balance sheet at given date, total fees charged etc.

This is currently being actively developed. I'm keen to hear suggestions and feedback. Now is the perfect time for other people's ideas and thoughts to be included in the initial release version.

Looking at opening for signups early February at this stage.