The Lenovo ThinkPad, the 10.1 inch Honeycomb tablet we first met back in July, is now on sale through Lenovo.com, with an estimated ship date of Aug. 29. If you’ll recall, the ThinkPad features a 1 GHz Tegra 2 processor, 1 GB RAM, front and rear cameras, HDMI-out, a 3-in-1 SD card reader, and Gorilla Glass, along with the business-friendly security enhancements that Lenovo has come to be known for. The ThinkPad starts at $499 for the 16 GB, WiFi-only model, while the 32 GB and 64 GB models, both with WiFi and 3G support, clock in at $569 and $669 respectively. Hit the source link for the ThinkPad’s official product page.