Hi simple request since i’ve already spent ages trying to figure this out.
I need a glass shader, reflective (cubemap) and tranparent (base texture alpha).
Just a combination of the Alpha-Diffuse and Reflect-Diffuse shaders.
I guess that shouldn’t be too hard and would be really grateful if you who now this stuff would spare a minute 
Any help at all?
why dont u dive into the sources of those 2 shaders, and desect them then take the parts you need !
sry im low on contribution but i think those 2 shaders are fairly easy selfexplanatory, and you would learn more by doing it that way !
(dont wanna come off as a prick ! no harm intended )
Look on the Unity Wiki for the Window shader. That does exactly what you need.
Actually, I found shader code for glass on this page:
http://unity3d.com/support/documentation/Components/SL-Blend.html
Although the cube map seems to move a heck of a lot and really fast when i walk past, doesn’t really behave like glass 
maybe a planer 2d reflection would work better?)
Can’t find anything on the unity wiki
http://www.unifycommunity.com/wiki/index.php?title=Main_Page when I search for window shader?