I just changed from firmware 2.00.10 to 2.00.12 (see Linksys Germany!). Didn't notice any significant changes in my case. Write down your settings before flashing because the router restores to factory defaults and the "user prefs" from v. 2.00.10 cannot not be restored in 2.00.12. Also the wireless led stopped turning on in 2.00.12! AES security is slower and blocks certain websites (like macromedia.com) so better use TKIP instead. Anyone experienced more 2.00.12 firmware problems?