Hey folks,

I always missed a few features when using the well known mining calculation tools like e.g.:
http://www.coinish.com/calc/
http://www.bitcoinx.com/profit/

To decide whether a new rig is worth the investment, what is important is to have a difficulty forecast and one additional parameter for the shipping delay

I built a little app using R Shiny
http://www.rstudio.com/shiny/
http://www.r-project.org/

However I don't have a suitable place to host the app. It looks like this and you can play with all the parameters:

http://s18.postimg.org/yt97b7vug/bitcoin_mining_profit_calculator.jpg

If anybody wants to host the app I am willing to share and further the code. Its totally alpha (did it in the last 3 hours).

cheers