World Wind has just had a major imagery update (only for the US this time), Adam and Matt from WorldWind central used the community donated cluster to process this data and add it to the Zoomit! image layer (included in World Wind 1.3.5 and above). The areas added are:-
alabama.birmingham_mar2002
alaska.anchorage_sep2002
idaho.boise_apr2003
louisiana.batonrouge_mar2002
maine.augusta_mar2003
maryland.baltimore-annapolis_oct2002-jan2003
nevada.carsoncity_jul2003
nevada.lasvegas-mesquite_sep2003
newmexico.albuquerque_mar2002
newmexico.albuquerque_mar2004
northcarolina.greensboro-winstonsalem_mar2002
ohio.cincinnati_jun2003
pennsylvania.allentown-bethlehem_feb-apr2002
texas.amarillo_apr2002
texas.austin_apr2002
westvirginia_wvsamb2003
Most imagery is 0.3m natural colour data, the screenshot shows AN/FLR-9 in Anchorage Alaska.