Memotron
The memotron is a virtual mellotron, based on digitized samples from the original keyboard's sounds. Manufactured by Manikin Electronic, it made its first appearance at the NAMM show in 2006.
It is used by Jordan Rudess in many shows with Dream Theater.
Rick Wakeman uses them when playing live, using 2 of them on "The Six Wives of Henry VIII", live at Hampton Court Palace in 2009.