plenty of these initiatives before, but with the likes of Microsoft pushing the tech, it might not be too long before we're all pushing a super-connected shopping cart down the aisle. Microsoft's aQuantive acquisition last year has the company looking to new ad venues, and apparently shopping carts are one of those. Microsoft has been working with a company called MediaCart which builds a cart-mounted computer that helps consumers navigate the store, and then checks them out when they're done. Microsoft wants to bring video ads into the mix, and the companies will start testing out the carts in ShopRite markets in the second half of 2008. Shoppers can bring their list to the store with a swipe of their loyalty card, and RFID tracks their movements around the store to pinpoint advertisements and other useful information. That's a whole lot of tech coming soon to a bum near you.