The latest page design does not work for graphics displays lower than 1024x768, you get overlapping headers. Something I mentioned in the past.
In IE9 you can hit f12 or go ro developer tools and under the size heading for IE to display differing resolutions. So this is what the forum page looks like at 1024x768 see the headers on the right overlap the headers on the left. Not good UI design at all.
This is what the forrum page looks like at at a size of 1280x768 - so the UI designers of this forum really have defined a minium of 1280x768 to be able to view without jumping through hoops to navigate. Makes you wonder who really tests this stuff?
Yes they would, but it's not the smaller text that is the problem it is having two sets of links (Right Under Photoshop General Discussion that is the problem. Look at the 1024x768 image I posted the two halves of those links overlap.
But someting is not right with the overall design. A good design will detect the browser agent and serve up content based on that agent, so for IE9/Chrome etc you serve up format to match, and if you detect a mobile/smartphone browser you serve up the correct images, text etc to make it readable and usable.
If Yahoo can do it, anyone can, but you need to put thought into what you are serving content to, not rocket science and has been around for quite some time, so indeed not a new concept