Nope, you'd need to buy a controller based solution. Wireless is not one of my specialties, route/switch, net security and voice are mine. I just have some exposure to these projects and have done a few implementations. So, take my recommendations/technical input with grain of salt.
Anyway, from a Cisco perspective (not Linksys type Cisco), the APs do not have the ability to redirect traffic to a web page that'll handle authentication and then from there proceed to track sessions and all that jazz. It is solely handled by one or more wireless LAN (WLAN) controller(s). (Depending on the amount of APs)
Any way, I'm not suggesting that you buy a Cisco solution since it would probably be way too expensive - UNLESS it is for a chain of restraunts or something then it could be cost effective. However, I don't think Linksys is going to be able to meet your requirements.
In general what you see in airports, hotels...etc...etc are more enterprise/corporate solutions. Linksys is considered SOHO/residential.
Ugh, don't spend money on anything. It's called DNS just set up the DNS. Don't need to set up OpenWRT or anything else if you don't want to.
you obviously don't know what he's trying to accomplish here.
This isn't a DNS issue, he wants first connections to redirect to an html page to sign up for a temporary account, then when time expires, their session ends, and redirects them back to the page again, etc...
or something like this.
I haven't heard of the other software for the linksys's working like that yet, but again, i haven't tried.
Ceyko is right for a robust solution, you'll be looking at a pricey piece of equipment.
You're only as strong as you allow yourself to be...