There has been some recent debate on led-tint, a lot of us begin to prefer neutrals over cool white, the BLF mini (that is still somewhere in the mail for me 
) is too green for some, and during hurricane Sandy the people don't care less about tint of course, but I think it is awesome that the BLF-mini has had good use already under those circumstances!!
So without knowing if anyone has written up anything similar, I thought let's share my thoughts on the tint-subject, without using (or being an extreme expert on) the details of what is happening in the colour spectra of light sources or how the perception of colour is organised in humans (actually very poor, but our wonderful brain manages to compensate for that by making the most of the little information that is coming in from the eyes. But our colour perception is very easily fooled!).
I believe one should understand that there are two separate qualities of of a 'white' lightsource regarding colour. First is how good the light is in distinguishing all separate colours of what is illuminated. I am not sure if this the exact definition, but I think that is ment by the term 'colour rendering' (the CRI-value of a source is an imperfect measure of how good a light source is in colour rendering). Second there is the tint of the light, that can be from pure white to very coloured light, with all tints in between. Lights of very different tints can still be good in separating the colours of what is illuminated, but of course if you divert too much from white the colour rendition can never be very good.
An example: light from the sun is very good in colour separation. Everyone experiences that if you really want to judge a colour, you go outside. But to do this it doesn't matter too much if it is sunny or overcast, the colour rendition of the light is good either way. But if you would type the white-tint of daylight, it goes all the way from cool white to warm white, and with all diverting tints underway; late in the afternoon the light gets a bit more pink, on a clear day in the shadow of a house, the light is very very blue. When it is cloudy with the sun peeping through, the light is extremely yellow. But our brain compensates very nicely for all that variation, we experience the light as more or less 'white'.
The different whites of led-light can also have all those tints, although not in the extremes of daylight. But we humans are nicely adapted to that, when we don't have another lightsource to compare it with, our brain just does the interpretation-trick towards what we believe is 'white', no problem. But how sensible are we for poor colour rendition? Oh well, actually, we are sensible but we do not notice it mostly, well, ..a bit.., ..some of us.., but even then we don't care less. If there is a choice for a light source: yes we prefer the source with better colour rendition, it is nicer to the eyes, we experience our surroundings more vividly. But if the choice is not there, well, any poor lightsource will do the job!
This all does not count for us light-snobs of course. We do notice led-tint and care about it, and if we train ourselves (and of course we do that 
) we get better and better in judging the colour rendition qualities of a light source at a glance.
I hope this was helpfull to some of you, and of course all comments on errors that I made, or additions to this subject will be appreciated. Let's end with a chart I found on the internet somewhere (hope it is not copyrighted) on led-tints, the use of colour in this particular chart I find very helpfull:
