>>Linux is an OS
Actually it's a kernel, dumbass.
>>1
Blurry? Depends on your monitor. Are you used to horribly aliased Windows fonts? That could be your problem.
Frankly, Linux distros could use MUCH better font anti-aliasing, but there are some patches out there that you can install that will make them pretty damn close to how OS X smooths its fonts. Unfortunately, those patches contain some possibly patented code, so it's technically illegal. But, who the fuck cares about that shit...