Sprint is getting serious about 4G in 2010. Not only is it bringing coverage to 120 million people by the end of the year, it’s bringing this connectivity to new types of devices that can share the high-speed love. The $99 Sprint Overdrive by Sierra Wireless is very similar to the Novatel MiFi, except this gadget delivers 4G speeds (up to 10x faster than 3G) and lets you share that connection with up to five other users or gadgets via Wi-Fi. We like the integrated LCD, which shows you the signal strength and batteyr life. Sprint is so confident in the speeds of 4G it is marketing the Overdrive as a potential replacement for your home broadband service. We’ll have to see just how fast this thing is.