I've made a small little page that uses the json from the middlecoin page to show your earnings. Auto reload every 10 minutes.
http://webbson.web44.net/middlecoin/

Just change the wallet and currency in the url to what you want. You write currencys as usd, sek, gbp, cny, jpy etc.


Edit: Seems like the free hosting didn't like traffic. I've put a copy here as-well http://webbson.bitbucket.org/middlecoin/