In the Traffic tab you can track the monetization achieved by different advertising campaign.

It would be great to be able see an additonal column that shows you revenue achieved by per install and per click. For example if Traffic source A gives a revenue of $100 and it gets me 1000 installs the revenue per install is $0.1

Also it would be great if you could enter manually in the CPI  or CPC rate for each traffic source. It would be even greater if the system would then give you the ROI of each traffic source.