Two can play the pooled ridesharing game, it seems -- just a day after the launch of UberPool, Lyft has responded with its own offering, Lyft Line. The basic concept is virtually identical to what we saw hours ago. If you're headed in the same direction as another customer, Line lets you hop in the same car and split your fare. You may have to wait a few minutes longer, but the savings could be as much as 60 percent less than a solo ride; that's cheap enough for daily use, if you believe Lyft. The option will only be available in San Francisco through the iOS app at first, but Android support and more cities are coming.