I missed further development of this discussion.
@John & Ethan: we provided Typekit with autohinted* TTF and they sent us resulting screenshots from IE 6. The result had poor grid-fit even in larger sizes (compared to OTFs auto-converted to TTF by Typekit) => we decided not to use it and improve the OTFs (which are still not uploaded as far as I know). So, what you see now is most likely the very first version.
*) note, it is fairly possible that I did not do a good job with the hinting.
@Tim: ah I see, it was not really a question, I was just elaborating (without actually looking) what could be the cause. Yes, it is obvious that the zones are not properly set in this version. I do have a hint of understanding to hinting.
At the moment, I am waiting to see how the new version will perform. If it is not bearable, I will have Skolar TT-hinted more carefully. Honestly, the cost-benefit of such investment is certainly in red numbers, i.e. I would do it just for the peace of my soul.
Where the responsibility for hinting (or better put correct appearance of typefaces) should reside? With designers, distributors or browser-makers? The webfont market is simply daunting.
>Where the responsibility for hinting (or better put correct appearance of typefaces) should reside?
For the web, if you mean there, the responsibility for the design and hinting of the face has been put on the font, by the operating systems. One OS says no hinting, or all hinting. The other OS says some hinting or all hinting, though I suppose there are times when no hinting on Windows would work too.
From there the question becomes point/pixel size of use, with designers, developers and distributors each perhaps having parts of the responsibility. The Browsers don't do anything complimentary to the problem, being trained to deal with so few fonts, dealing with all the fonts is going to be problematic for browsers for some measurable time.
Then, when browsers "get" how to use the OS scaling and rendering, or make their own, it's the author's turn to be confounded. If the latter happens widely, it'll be the W3C's responsibility, I think. Early Signs are, even with the brilliance and energy of Typekit, "Yes", many web authors are confounded.
>The web font market is simply daunting.
Do you mean to the type designer?
>>The web font market is simply daunting.
>Do you mean to the type designer?
Yes. It feels like a shooting a moving target. I quit webdesign for the same reason (adapting for too many browsers, scenarios, …, => losing control).
The new Skolar Web hinted by Ross Mills for ClearType is out there now. The fonts are available on Typekit now and will be available on other services soon. All four hinted weights (regular, bold, italic, and bold italic) include Cyrillic as well!