Im using a lot the uv editor in a job now , and i find these things could be very usefull :
1 ability to edit like photoshop the textures , bright,light,contrast,hue,cloning,bluring,etc…
2 the ability to see the entire name of the texture , now we can only see a certain amount of letters and many times i just can see the whole name ,
3the ability to see where the texture is , the path of the file. sometimes i forget where it was and i have to search where it was.
this would save a lotta time.
the mini photoshop thing shouldnt be so hard to do as we alrready have all those tools in the compositor ( i think )