When you install the 2.6 preview release, make sure that the OpenLayers Samples feature is enabled.
After installation, load in the Sheboygan sample package using Maestro or the MapGuide Site Administrator and then go to the new samples landing page link on the start menu.
To simplify the installer, all the code samples have been aggregated into this single landing page. Just be aware that some of these links might be broken if you didn't choose to install the respective samples from the installer.
Have a play around and you may be surprised what you can do with just OpenLayers and jQuery in MapGuide 2.6. Note that mixed map and the Google/OSM examples won't work out of the box.
Load this document into the specified resource id via Maestro or the mapagent test pages. Reload the sample page and it should now work.
These samples aren't set in stone yet. We could probably automate/simplify this process of setting up example data files somehow.
Nevertheless, hopefully these new samples give you some ideas and/or inspiration.