There's a new version of Webguide out. I posted the comments below in the Feature request forum over at the site. If the use case below would be useful to you, please add your thoughts.
I love the application, and have used it for many years (XML TV... shudder). It's usefulness is somewhat limited for me because of the way I have my network setup at home. My MCE boxes run on a different LAN segment than my home server (which hosts web applications). Because of this I can only use it while connected to my LAN (or by first VPN then using RDP to connect to a box on the LAN).
I can enable http traffic on non-standard ports, 8080, for e.g. but doing so defeats the reason why I have my LAN segmented in the first place.
It would be great if the business tier (the part that needs to be installed on the MCE) was separated from the presentation tier (Web GUI) using something like .NET Remoting or WebServices; either of which have their own benefit/costs.
Personally I think TCP base Remoting would work the best, as it would remove the IIS dependency, and would work easily through firewalls. It would also be the easiest to configure, if running both tiers on one machine. The main downside with this approach is that much of the plumbing that is provided with webservices would need to be built with remoting. I'd be happy to help with either approach if selected.