Asus Transformer Infinity 10.1" 64GB Tablet $550 at Amazon

Amazon has the ASUS Transformer Pad Infinity TF700T-C1-GR 10.1" 63GB Tablet for $550 with free shipping. Office Depot has it for the same price.

1.60GHz NVIDIA Tegra 3 CPU, 1GB RAM, 32GB storage

NVIDIA ULP GeForce graphics, 1920x1200 LED IPS+ Capacitive

Android 4.0, microHDMI, 802.11n, 2MP & 8MP cameras, GPS