Over the years, Garmin's beefed up its line of Forerunner GPS watches, offering something for everybody withgraphs and even a dash o' pink. But the new, slimmed-down Forerunner 610 is the first to feature a touchscreen that you can tap to flip menus instead of feeling around for a host of bantam buttons. For your $350, it'll display distance, time elapsed, and pace all on one screen, though you can add other metrics, such as heart rate. The 610 is also the first in the line with a run / walk alert, which keeps Auto Lap and other features active even when it detects you're walking. As always, you can upload your runs to the web in excruciating detail, but this watch jumps on the social bandwagon with "Virtual Racer," a Nike Running-esque community where you can compare your stats with strangers' (or just try to best your own PRs, if you don't play like that). After logging some epic runs with the touchscreen Nano, we'd be curious to see how resp...