Seems to be that time of year, I've just gone for one of these, , First non Arai I've bought for a long long time, but felt really comfy as I kept it on in the shop for twenty minutes! I get a flip down sun visor as well, so no more visor switching needed for those brief 20 minute attacks of sunshine!
I looked at the GT air also and had my heart set on that very lid. Ended up with the XR1100 though as it came at a price I couldn't say no to, as I already have the XR1100 and have no complaints.