if its just for kids, i would look into these tablets on ebay for 65 bucks.
TechPad D-800 Google Android 4.0 7" PC Tablet 4GB Computer Netbook
Technical Specs:
•Google Android OS 4.0
•Built in Camera
•Memory - 512MB DDR2
•4GB NAND FLASH
•7-inch (diagonal) high-brightness TFT LCD widescreen touch display
•800-by-480-pixel resolution
•Accelerometer
•Wi-Fi CERTIFIED network connection
•Microphone in X 1
•Language support for English, French, German, Japanese, Dutch, Italian, Spanish, Simplified Chinese, Russian
•Keyboard support for English (U.S.), English (UK), French (France, Canada), German, Japanese (QWERTY), Dutch, Flemish, Spanish, Italian, Simplified Chinese, Russian Height: 8.15 inches (207 mm)
•Width: 4.69 inches (119 mm)
•Depth: 0.5 inch (13 mm)
•Weight: 0.77 pounds (0.35 kg), 1.89 pounds (0.86 kg)
• Battery Type: Built in 7.4V 1600MAH Li-ion Battery
• Battery / Run Time: (up to) 2 Hours