Last year, I had the chance to review the iMainGo X Ultra-Portable Speaker and Case for iPhone/iPod and was amazed at the great sound from such a small set of speakers. I was interested to see that they’ll soon have the iMainGo XP for iPad and iPad 2. The portable speaker case has a rechargeable battery so it doesn’t drain power from your iPad. Four 32mm titanium-coned neodymium high speakers at 5.0 watts per channel deliver crisp, clean sound, and the case even acts as an iPad stand. The iMainGo XP is now on presale at Amazon.com with a retail price of $119.99. It will also be available at a wide variety of US retailers, including Fry’s Electronics, as well as Canadian outlets starting November 1, 2011. Read the full press release here.