I am writing this in the hope that Apple reads this as well as posts by others. I do know that other companies read forums such as CNET, etc. The screen on the 13" rMBP is mind boggling beautiful. Everything about the computer is fantastic except the scrolling lag that others have noted here. There was no issue with speed from tab to tab, open sites, continuous streaming etc., it was just the scrolling lag on several websites that I must use. My two year old 13" MBP runs everything fine. I presume that the retina issue is due to the integrated graphics. Sadly, I mailed the rMBP back to Apple today.