i really dont undertsand why people seem to NEED a preview button - Why not just reread it and check it in the window you are writing in?
whats the difference?
even if you preview it in a different window, you still have to go back to the original window to edit it... so really you are just opening a new window, then going back again anyway...so why bother.?
you say you nearly posted this without previewing "to make a point" (!) but you didnt and had to make 6 alterations... are you suggesting that with a preview option you wouldnt have had to edit it? -that makes no sense.
how can it possibly be quicker to open a new window, check it then go back to the other to edit, than just simply editing it as you go along or in the window you already have open?
itd be a pointless addition.