No I can confirm it hasn't worked for me on IE 8 (on a PC) nor with Safari on a Mac. I also tried Chrome but I know you've already said it's not working with Chrome. The behavior with all browsers was the same, and I tried both GV and Callcentric. I would fill in all the info in the wizard (and yes I double checked that the IP was correct and was on the same subnet as the computer I was configuring from--tried both a Mac and a PC on my LAN). After filling in all the information I clicked "Configure" and got a browser message saying to wait 30 seconds for the process to complete. After 30 seconds I would go to the device's web page and look under "System Status". For one, the uptime value indicated that the device had not been rebooted. Secondly, the SP1 and SP2 Service Status sections continued to indicate no service was configured.
The very first thing I did when I received the Obi110 yesterday was flash it to the 1.1.0 (Build: 1832) firmware manually. The update was successful and that version shows up as the software version in System Status on the Obi's web page.
In the end, I ended up joining my Obi to the ObiTalk portal to get it provisioned with GV and Callcentric. That seemed to work fine, aside from an issue I am having with the voicemail access number for Callcentric, which I will post a different thread about.
So yeah, I think that the Device Configuration Wizards are broken, even with IE and Safari (I did not try Firefox as I don't have it installed).