One mistake, the Bay Trail I is not intended for Tablets... That's for the Bay Trail T series, which will go under the "Z" model numbering like the previous Clover Trail!
Intel already revealed at least one model number for Bay Trail T, the Z3770 that they used to base their promotional slides for Bay Trail on!
While Bay Trail I is for Intel's embedded processor line, and the "I" stands for Industrial!
"Doubling" the performance doesn't seem to be enough to beat ARM based competition. So far the tech public has been mislead by comparatively high Antutu benchmarks(has vulnerabilities in the memory test which is prone to faking) and javascript browser benchmark comparisons between platforms.
However, with Intel on android we can finally get a real comparison picture, and Clover Trail doesn't hold a candle to ARM. The last proof to this is the Samsung Tab 3.0 10.1.