Amazon, are you listening? A 7-inch Android tablet with a bright, HD display, a powerful quad-core Nvidia chip (great for games & videos), two cameras, Bluetooth, Wi-Fi, NFC, a memory card slot, HDMI and USB ports for $150? That's what Hisense and Nvidia's Nick Stam showed off in NYC May 23 at a press event. The Hisense Sero 7 Pro (top and at right next to original Amazon Kindle Fire) and the dual-core, one-camera Sero 7 LT ($99) go on sale at Walmart tomorrow. CLICK THE PIC for more info.