The best thing about Qualcomm and Microsoft's "Always Connected PC" platform is the promise of being online anywhere, anytime. But that can also come at a cost -- data isn't free. That is, until now. Sprint is offering free unlimited 4G LTE to anyone who has a Snapdragon-powered PC, namely the ASUS NovaGo, the HP Envy x2 and the Lenovo Miix 630. The free data dries up on Dec. 31, 2018, after which you can cancel your subscription or pay $15 a month ($10 if you enable AutoPay). Note that you'll still have to pay "taxes, fees and surcharges," and be subject to "speed maximums."