Well, since absolutely nobody, including the Sencha Architect developers, are able to help out I've had to end up using Eclipse ADT with a couple of JavaScript plugins (purely to colour code the source etc).
Trouble is that obviously, once you start editing the code in ADT you can't go back to using Sencha Architect. If there's something I don't know like how to position something in a particular way for example, I'll open the project in SA, do what I want and then copy and paste it into ADT (my ADT files are a copy of where I got up to in SA).
Any idea when Sencha Architect will support Profiles Mods? It's pretty important that developers can offer their apps on multiple devices with a single codebase.
This is how I develop too. I did occasionally use Architect to save some time in knocking up some views, but it's just not flexible enough to use on its own, except for quite small, single profile projects.