Minimo looks interesting but they already seem to have made the mistake of limiting themselves to their target platform which is understandable at first but hopefully they will make it available for more platforms soon. [It seems provided test builds for Intel desktop machines are already part of the plan for Milestone 1]
What they should be doing is also providing binaries for Desktop platforms such as Linux and Windows so that users without the right hardward can more easily contribute and so that web designers can design and test their web pages without the need to emulate the handheld hardward and there are desktop users who are interested in a minimal browser (but not as minimal as a console based browser).
Surely their own developers are using Workstations or Desktop enviroments, rather than working directly off real (or emulated) handhelds?

It will be less of an issue if Mozilla gets a small screen view like Opera has had for a long time now. Another thing they could do to help content developers would be to get their Custom Stylesheet for Handhelds included with Mozilla and enhance the "Use Style" feature (in Mozilla but dropped from FireFox) to apply local stylesheets, again just like Opera has had for ages.

Having jumped through hoops and suffered the difficulties of trying to get a Microsoft Pocket PC emulator to run just so that I could run the Pocket Internet Explorer and do some testing I know it would be a significant benefit to be able to run Minimo on my desktop.

Thankfully both Minimo and Mozilla use the Gecko rendering engine so the differences should be minimal but I am certain it is a mistake not to also provide binaries for desktop platforms.