"When attempting to use the Xoom in an intranet scenario at an enterprise, or a college/university, there is no way to configure a HTTP web proxy to allow you to gain access to the internet."
Why do I need an HTTP proxy?
When on an isolated network such as at work or at school, you do not have a direct connection to the internet for security reasons. You connect to an intermediate device for HTTP access which then proxies your connection to the internet. Without the ability to specify a proxy, you have no way to connect to the public internet while on the internal secured network. Unless you have the 3G/4G (LTE when updated) plan, you're only access to the internet would be by specifying a proxy server to use.
I work at a school and I need HTTP proxy support. Android doesn't natively support it, even though Google has known about the issue since 2008. Some Android devices have it, such as the Samsung Galaxy S, but that's a Samsung customization.
To make matters worse, I owned an iPad 2, which has native HTTP proxy support; so does the iPhone. I returned the iPad because I felt limited and boxed in. I'm an Android user and the level of customization and freedom that exists on Android compared to iOS made it difficult for me to tolerate the iPad for too long. It does have a very polished, refined, simplified, and complete OS, but then you're also very limited in what you can do and how you can do it. I don't want that. I want the freedom and customization that is Android, but if I cannot get native HTTP proxy support to use the device at work, the device becomes useless to me. I want to keep it, I want to like it, but as I mentioned earlier, that issue is non-negotiable.