CEO Dan Hesse may have his doubts on the future of WiMax, yet Sprint continues full-steam ahead with the roll-out. And today Sprint again extended its 4G WiMax service to three more states: Delaware, Florida, and Michigan, as well as increased its coverage in California. With newly added markets in Modesto, Calif., Stockton, Calif., Jacksonville, Fla., Wilmington, Del., and Grand Rapids, Mich., this brings the total to 48 markets with WiMax across the nation. The lack of metropolitan areas in the market is still disappointing, but Sprint is still holding its promise to roll-out WiMax in Boston, NYC, and Los Angeles by year's end.

Here's a full listing of WiMax's markets:

California - Merced, Modesto, Stockton and Visalia; Delaware - Wilmington; Florida - Jacksonville; Georgia - Atlanta and Milledgeville; Hawaii - Honolulu and Maui; Idaho - Boise; Illinois - Chicago; Maryland - Baltimore; Michigan - Grand Rapids; Missouri - Kansas City and St. Louis; New York - Rochester and Syracuse; Nevada - Las Vegas; North Carolina - Charlotte, Greensboro (along with High Point and Winston-Salem), Raleigh (along with Cary, Chapel Hill and Durham); Oregon - Eugene, Portland and Salem; Pennsylvania - Harrisburg, Lancaster, Philadelphia, Reading and York; Texas - Abilene, Amarillo, Austin, Corpus Christi, Dallas/Fort Worth, Houston, Killeen/Temple, Lubbock, Midland/Odessa, San Antonio, Waco and Wichita Falls; Utah - Salt Lake City; Virginia - Richmond; Washington - Bellingham, Seattle, Tri-Cities and Yakima. For more information, visit Sprint: First and Only Wireless 4G from a National Carrier.
Source: Sprint