Well, you're probably right, both cameras should be on the list. The A2 offers things they didn't put on the A200 -- PC flash sync and Flexi-EVF are gone. The A200 is more compact for those that thought the A2/A1 were too big. Give them another year and they'll probably have a pocket-size A500 or something ...
It would be best if you could physically see and handle both cameras before making your purchase decision. Both are excellent cameras.