Though era of quad core is coming,I think dual core has more stable performance at the moment.Pipo S1 actually was kind of hot selling three months ago for its nice looks and good price.Even now it still very good 7 inch tablet.
Spec
Operating System 4.1.1
Display 7 inch Capacitative touch screen
Resolution 800x480 pixels
CPU Dual-core 1.6 GHz RK3066
GPU Quad-core Mali 400
RAM 1GB
ROM 8GB
Camera Dual Cameras Front 0.3, Back 2.0 Megapixel
WiFi Yes, 802.11 b/g
3G via Dongle
Microphone Yes
G-sensor Yes
Bluetooth No
HDMI 1080p
GPS No
Flash Yes
Android Market Yes
3D Gaming Yes
Pipo S3 for around $120
http://dx.com/p/pipo-s3-7-capacitive-screen-android-4-1-dual…
pppppppppprice in title…