Sifteo Inc today announced the upcoming general availability of its Sifteo cubes to U.S. and Canadian customers. Sifteo Cubes up for pre-order by the end of today, ship out in September. You’ll receive a triplet of the oh-so-cute Cubes, a charging hub and a 2.4 Ghz wireless USB adapter for connectivity, as well as transferring Sifteo store apps purchased on your computer. It was briefly available to early adopters in January for $99.99, and now $149.99 gets everyone in on some good times. Checkout more details bellow in the press release.