On the heels of launching the Novatel Wireless MiFi 2200 mobile hot spot, Sprint today added two new 3G/4G mobile broadband routers to its portfolio. The new devices include the Sprint Personal Hotspot PHS300S and Cradlepoint MBR-1000 Broadband Router for business, each featuring both 3G and 4G connectivity.

The devices are available for use with any Sprint 3G or 4G data plan ranging from $39.99 to $79.99 per month.

Sprint Personal Hotspot PHS300S supports up to four simultaneous Wi-Fi connections and Cradlepoint MBR-1000 Broadband Router for business supports up to 32 simultaneous Wi-Fi connections.

Both routers will support all of Sprint 3G and Sprint 4G mobile broadband USB devices.

The PHS300S is priced at $159.99 and available in select Sprint retail stores within Sprint 4G markets and online. The MBR1000 broadband router is priced at $249.99 and is available via business sales, telesales and online.

Sprint currently offers its 4G WiMAX service in Baltimore and will launch 4G in Portland, Atlanta and Las Vegas in August. Sprint 4G touts average downlink speeds of 3-6 Mbps and peak downlink speeds of over 10 Mbps.

Sprint recently announced aggressive deployments for its 4G WiMAX service, saying it also will launch service in Charlotte, Chicago, Dallas/Ft. Worth, Honolulu, Philadelphia and Seattle by the end of 2009.