Wi-Fi Auto Login & Saved Usernames/Passwords Problem in iPhone OS 3.0 (GM)

I work at a University and we have campus-wide WiFi. It requires you to log-in via a web-browser page (you are automatically redirected when you open your browser), like a commercial hot spot. The new Automatic WiFi Login feature of 3.0 (GM) doesn't work for me. The process is definitely different, but doesn't seem to be totally working. Instead of being redirected to a log-in page when I open Safari, now a window slides up from the bottom of the screen with the log-in page. I type in my username and password, hit go, and it works like normal, only since the log-in page is now on a slide-up page, it just slides down and goes away, and I go about my business.

The way my campus' network works, if you are inactive for a long enough time (somewhere between 15-30 minutes, I'm not sure exactly) you're logged out so when you start browsing again you have to log-in again. It's a giant pain for iPhone users seeing as most browsing sessions on the iPhone are pretty short. As a result, I'm typing my username and password into that log-in page multiple times a day (between 3-10 depending on how much I use the phone). I don't know what's up with it, but in the new version of Safari under 3.0 (GM), when I'm logging in to web sites, it doesn't ask to save the password every time. For example, it won't ask to save the password when I go to Twitter's mobile site, but it will when I go to Facebook's. I'm not sure why it is only remembering information for certain sites. My campus log-in page is one of these sites. When I log-in via the new slide-up window, it doesn't offer to remember the info, so I'm assuming it can't pull it back up to do the automatic log-in, which is why I think it isn't working.

Specifically, when I connect to the network now, the phone appears to try to auto-connect (screen dims and shows "connecting") but eventually gives up and slides the manual log-in screen up.

Anybody else have experience with this?