An unconfirmed report on Monday suggests that Sony is working on two unannounced tablets slated for release later this year. Struggling electronics giant Sony has been noticeably absent from the tablet tsunami coming our way this year, but it looks like the company has plans to change that in time for the holidays. Sony is already rumored to be working on a PlayStation certified S1 tablet, and now two new slates are supposedly in the works as well. The first, codenamed S2, is set to be a clam shell Android device with dual 5.5-inch displays, a Tegra 2 processor, Wi-Fi, embedded 3G and a modified version of Google’s Honeycomb OS designed to take advantage of two screens. The other rumored tablet is said to be VAIO-branded. It will allegedly run Windows 7 and feature a 9.4-inch display, an Intel Atom processor and a sliding QWERTY keyboard. Sony is said to be targeting a $699 price point with the S2, and the Windows 7-powered VAIO tablet will cost $799 or more. Both devices are rumored to be scheduled for launch ahead of the 2011 holiday season.