
Made in PS CS3, likely translatable to other Photoshop editions.
The tutorial is pretty simple, but I hope you will still enjoy it :)
Step One:
Crop the icon.

Step Two:
Duplicate the the base layer and set it to screen 100%

Step Three:
Duplicate the screen layer so that you now have two screened layers on top of the base layer.

Step Four:
Add a Color Balanca layer(Layer>New Adjustment Layer>Color Balance)
Put in these numbers:
Midtones; +36,0,-33
Shadows; -46,0,+20
Leave highlights as it is.

Step Five:
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 :)