Sold in two versions -- the standard Ladybug ($110) and artistic special editions ($125) -- Vestalife's new iPod speaker differentiates itself from the (huge) pack by offering a combination of great, youthful design and very good speaker quality at an attractive price point. The battery- or wall-operated globe-shaped speakers pack left and right drivers, plus a rear subwoofer; the front speakers unfold like ladybug wings to reveal an iPod dock and…