Having already won Best of Show Awards for their "just makes sense, especially at these prices" feature sets and design, Griffin's just-released PowerBlock Reserve ($40), PowerJolt Reserve ($40) and PowerDuo Reserve ($60) are three combination charging and battery solutions for iPod and iPhone users. PowerBlock Reserve and PowerJolt Reserve are wall and car chargers, respectively, that now have detachable rechargeable battery packs in their boxes,…
