Offensive-security have got a modified version of an Ubuntu 10.04 ARM image, chrooted on a Motorola Xoom tablet. The tablet is running a modified, overclockable kernel (from 1.0 to 1.5 GHz) The VNC session does not lag, and the touch keyboard and touchscreen are very workable. The team will not promise an ARM release on May 10th, as this new “experiment” was not planned in any way but we’ll do our best.
Source: https://thehackernews.com/2011/04/backtrack-5-will-also-be-for-motorola.html