Sprint has released a new 4G USB U1901 for connecting laptops and netbooks to Sprint's 4G network. The U1901 works with both Windows and Mac machines. Here is more info on this 4G USB key on Sprint:
Sprint 4G USB Device U1901 U1901 provides access to Sprint 4G wireless speeds up to 10 times faster than 3G1 in those metropolitan areas across the country enabled with the new 4G mobile broadband service. U1901 is also an affordable option for value-conscious, highly-mobile Internet users, such as high school and college students who want to browse the Web, send and receive e-mail, access information, and explore social networking and multimedia entertainment.
* Sprint SmartView software installation via CD * Equipped with two external antenna ports for improved performance when plugged into the separately sold docking cradle * Flip-up USB connector * Easy hands-free activation * Sprint 4G provides peak download speeds over 10 Mbps (average download speeds of 3-6 Mbps)
* Dimensions: 3.15 inches x 1.2 inches x 0.59 inches * Weight: 0.9 ounces * Chipset: Beceem BCSM250 * Compatibility: Windows Vista, Windows XP, Windows 7, MAC OS 10.5 and 10.6 with Intel platform.