Honour thy mistake as a hidden intention

There's been a lot of talk about how Olympus should add instant histogram review in a future E-1 firmware upgrade. Actually, whilst I would not mind seeing this, I don't find the two-click approach need now terribly inconvenient. What I do think is a problem is the lack of a permanent ISO speed display. Really it should be in the viewfinder. It is as important as aperture and exposure. Twice now I've shot a whole series of photos at the "wrong" ISO. although clearly I should realise that there is something amiss when I'm assuming I'm at ISO 100 and in fact am at 800! Instead I started thinking to myself that I should get an ND filter, and at least I'm not using a Nikon that only goes down to 200! But... had I not made this error, I would have missed out on some quite nice photos, like the one below, where working at high ISO made me work at higher shutter speeds than I normally use for "water" shots - and the results are quite good.