Originally designed and debuted as a sophisticated speakerphone and Bluetooth audio streaming system for iPhones, iHome's iA100 ($200) went through an eleventh-hour transformation after Apple announced the iPad, growing a bigger dock with full support for the tablet, and a higher price tag, too. The new dock uses a metal and rubber pipe for rear support, with a large groove in the top surface to accommodate the added depth of some cases, and has no…