After less than a year in stores, Dell pulled its Streak 7 tablet from the market in December of 2011. The reason? The low-res 800 x 480 screen certainly didn't help. Neither did the awful battery life. The Streak 7 lasted just 3 hours and 48 minutes on a charge when using T-Mobile's 4G network, and the endurance only increased to a little over 4 hours on Wi-Fi. We liked the speed of this Tegra 2-powered slate, but that wasn't enough for Dell to stand out. The company eventually stopped selling both Android tablets and phones.