Arcticfusion is building a business oriented SOA - MASHUP - WEBTOP to:
1. Merge applications administrative tools from disparate applications into a single Web 2.0 desktop.
2. Integrate tools to pull all these component applications together into a single client.
3. Support all applications with documentation, unified help, and context validation.

Arcticfusion is building an architecture for developers that will:
1. Provide straight-forward way to code and design application once, and distribute in multiple formats (Java, DHTML, Flash)
2. Provide for rapid prototyping
3. Provide for frequent update and delivery of changes
4. Extend and/or integrate application workflow and functionality to unrelated external applications

Arcticfusion is:
1. Community and corporate sponsored
2. Active with a full time dedicated development team
3. Looking for and encouraging community involvement
4. Listening to and willing to work on all proposals
5. Apache 2.0 Licensed

Sometimes, but not always, a picture is worth a thousand words. I'll let you be the judge:
This was a quick diagram and misses some of the finer points, but I think it helps.