Ion’s Block Rocker is a classic when it comes to iPod Docks, as a matter of fact, its design was so practical that even spawned countless imitators. Now Ion has updated the design to accommodate the iPad with the new Block Rocker HD. This all-in-one, portable sound system on wheels can last for 12 hours on a charge and features a high-efficiency amplifier along with four inputs for connecting microphones, guitars, keyboards or CD/MP3 players. The Rocker HD also comes with a microphone and cable bag, and the included cradle will hold the iPad in both landscape and portrait views. Pricing is TBD.