The successor to iDL45, iHome's iDL46 ($100) shares the same feature set, but comes in a smaller, sleeker package. Instead of rectangular, it's oval-shaped with plastic designed to look like brushed aluminum on top. A Lightning dock can hold and charge any modern Apple device, although case compatibility is an issue. A second iPod or iPhone can be plugged into the USB port, which requires a separate cable. In addition to its alarm clock functionality,…