is a laptop screen blurry?
My eyes would get tired on my first gen iPad, even before the iPad retina displays came out. The pixel density while reading text just looked blurry.
On a laptop however, I never have that problem. Viewing text is a dream because of subpixel rendering/clear type. It makes me wonder how good any new retina display will be on a mac. I don't think you'll get the dramatic difference you do on a new ipad.
I'd personally rather have a 10 hour battery in a laptop. I'll be interested in seeing what's available at the WWDC keynote.