As externally near-identical updates to earlier, same-named products for iPods and iPhones, Griffin's 2010 versions of the wall charger PowerBlock ($30) and car charger PowerJolt ($25) now boast full compatibility with the iPad, as well. Each accessory includes a USB to Dock Connector cable and a charging device with 2.1-Amp maximum power output, capable of recharging the iPad's battery in roughly four and a half hours. PowerBlock is a black and gray…