WiMAX desktop modems have been popping up all over the place lately, and the latest evidence for a major push towards 4G for the home user comes to us courtesy of Sprint. The company quietly made Motorola's CPEi 25150 (the predecessor of the CPEi 100 we saw at CES) available to customers over the weekend, featuring that famous shark's fin form factor, white and yellow Sprint logo, and the promise of "the best radio performance in its class," on account of dual integrated antennas. Of course, this thing also has the requisite ethernet and USB ports for connecting to your home router. If you're lucky enough to have Sprint WiMAX coverage in your area, call your main man to get started. You can look forward to paying $100 (with $150 instant rebate) after signing a two-year contract. PR after the break.