Hi all, I have a G2 which has served me well for a while now but I've got the urge to upgrade to the GX7. Some questions I have: Does the GX7 perform much better in low light? How about the WiFi, does it work well? I'd like to be able to take a picture and then have it on my iPhone right away. Is there any reason I should just get the EM1 instead? I've been going back and forth on this but the price is a lot more for the EM1. I was interested in the EM1 mainly because I wanted something new to play with and I feel like going Olympus would be something new and fun to play with compared to the Gx7 which may not be that noticeably different.