dont know of one but I find the current block explorers confusing. tracking addresses is hard, understanding spent/unspent balances is hard. & I dont know programming to help build :(
Yep, I think an explorer that does a better job of visually illustrating the blockchain and (especially) the double-entry bookkeeping transaction system to the average user is critical
From my perspective its probably easier to build my own. This is the closest I've found, however, if you are looking for a starting point: https://tradeblock.com/bitcoin