Does Cloudcraft do generic diagramming? At least from the landing page it seems pretty purpose-built for cloud architecture diagramming only. I also have to give major kudos for whoever made the call to go with an isometric projection... visually and mentally, it's a perfect choice for that domain!
The focus is cloud architecture diagramming, but you can use the design tools to diagram bare-metal architectures if you want or anything else, really. Heck, we had an internal game of chess going at some point and someone was rebuilding pieces of New York City using the design tools.
