We're skeptical of accessories that claim to boost signal performance, but willing to give Absolute Technology's Linkase for iPhone 5 ($50) a shot. The claim is that the polycarbonate and rubber case can boost Wi-Fi reception up to 50%, thanks to a retractable electro magnetic waveguide (EMW) antenna. Although the jury's still out on the wireless improvements, the case is pretty protective thanks to button protection and tightly tailored openings…
