I've uploaded a portlet-based alternative to the display-panel. It's not a drop-in replacement - at the moment you have to load the data manually using Ext.Ajax,
but the layout stuff is working nicely. I'll try to make it close to a drop-in replacement in future.
Please open issues/fork me/send pull requests etc. Improve it and pass it on
Also I hope MIT lets you do whatever you want, so if the Intermesh people want to use it in any way you don't even have to tell me
EDIT: forgot the link - here it is https://github.com/derekdreery/group-of ... play-panel