I really want to buy the most expensive 15" rMBP for business. Right now I have an early 2011 17" MBP. I use it on my desk regularly with a 27" cinema display, and I also use it often while traveling. I do have a few Q: 1. Was the whole LG screen burn thing fixed? 2. Do you think in the upcoming refresh they will update any hardware besides the Haswell chip? Gfx, memory, etc? 3. Most importantly.. someone told me that their retina MBP has some stuttering issues because of such a high resolution, and that they 'honestly wouldn't have bought it' if they could do it again. They said different css intensive sites are quite janky and slow down a bit. Or things can stutter if under load. Is this something you guys have experienced? This is absolutely not something that would be good for my workflow. Thanks!