Android this week: Project Shield packs a punch; Optimus G Pro goes big; RunKeeper revamped

(gigaom.com) — This week didn’t bring any new pricing or availability details for Nvidia’s Project Shield, however the portable gaming device was featured in a new video. The Android-based handheld, designed and built around the company’s new Tegra 4 chip, pairs a 5-inch 720p touchscreen …