I've recently got into photography and been doing a lot of processing using aperture and photoshop and am finding my 15" MBP screen just isn't big enough so was contemplating getting an iMac. However, there's nothing wrong with the performance of my late 2011 MBP with Hi-Res screen so was thinking a thunderbolt display might be a better/cheaper option so was wondering if folk wouldn't mind answering a few questions please? 1. Does the thunderbolt work as a 'replacement' screen for the MBP, or does it simply mirror it? 2. If it works out as a standalone screen would it take advantage of the full resolution, or would it only be the native resolution of my MBP which is 1680 x 1050? 3. If it uses the full 2560 x 1440 if I took a screenshot would it save it at the thunderbolt resolution, or would it save at the MBP display resolution. 4. I calibrate my screens using 3rd party software, if I calibrated the Thunderbolt display would this then change the display on the MBP and so I would have to go into system preferences and choose the correct calibration for the correct screen, or would it automatically switch between displays? Any info much appreciated. Obviously before I make a final decision I'll wait for the WWDC to finish to see if they announce a new display.