ArcWeb Explorer (Out of Beta)

ESRI have released ArcWeb Explorer out of Beta - (some 'widgets' still in beta status)
Uses Flash



It has some new features - drag and drop locations - get directions from/to them

Add Excel file - you can add your own data to the map, check format first. (can be shape file .dbf)

Find Locations - Find Me/Computer (via IP address, find Geo URL)

View by Map, Hybrid, Satellite and Data type (USA only, Census data)

More Screenshots, PDF's and more info on James Fee GIS Blog
update: ESRI's Official Press Release