From GISWiki

Gaia is an Open Geospatial Consortium (OGC) compliant viewer developed using CarbonTools. Gaia is capable of handling raster maps and GML features from any Web Map Server (WMS) or Web Feature Server (WFS). In addition it can save and load individual raster and GML layers as well as complete sessions as local files.

Web-Links

• http://www.thecarbonproject.com/products/gaia.html