upgraded from A1 to T20.
T20 is a vastly superior camera than A1 for sure, especially in the image quality and focus speed department.
but there are somethings about A1 that I missed...
portablity: A1 paired with XC kit lens is much more portable than T20 paired with XF kit lens, the latter feels more like a DSLR system.
flash: agree with deemkey, T20's fixed flash cannot be used as a bounce flash, which makes it almost useless.
EVF: I'm joking but not entirely...the the DSLR style EVF on T20 is more awkward to used than the rangefinder style EVF on Pro & E line. you have to sweeze your face to get close to EVF as close as possible, reminds me of the good old DLSR days, which I was rather happy to forget aboout.
if E3 comes with a tilt screen, it might be an ideal camera for me...