Best Buy offers the Cradlepoint PHS300 Personal Portable Wireless Hotspot for $39.99 with free shipping. That’s $10 under our mention from two weeks ago and the lowest total price we’ve seen. (It’s also a current price low by $10.) Sales tax is added where applicable. This device lets you create a 3G WiFi network almost anywhere with your cell phone via tethering (if it’s supported by your phone/service) or cellular modem.