Yes, 7590 is a little smaller than 6490, and add some more functions too, but there is no major changes. Check dpreview for more details.
For my opinion, 6490 has the best performance/cost.
The price of 7590 is more than $450, so with this price, you can get a Canon G5 / or a 6490 +1G SD + case + ....
[此贴子已经被作者于2004-11-2 9:59:27编辑过]