Made in PS CS3, likely translatable to other Photoshop editions.
The tutorial is pretty simple, but I hope you will still enjoy it :)
Crop the icon.
Duplicate the the base layer and set it to screen 100%
Duplicate the screen layer so that you now have two screened layers on top of the base layer.
Add a Color Balanca layer(Layer>New Adjustment Layer>Color Balance)
Put in these numbers:
Leave highlights as it is.
Finally, add a new fill layer and fill it with #87bbca and set it to darker 100%
And you're done :)
I know it's a very simple tutorial, but if you like it please leave a comment here and not on this post :)